| Description | Date | Identifier | |
| Test data table for various body configurations of a Model I Rolls-Bentley car, measuring aerodynamic drag. | 1st Jan 1908 | Box 160 \ 2 scan0141 | |
| Photographs of a scale model 'Bensport' car showing a modification to the nose. | 7th Jul 1933 | Box 160 \ 2 scan0142 | |
| Letter regarding the unavailability of the Cambridge University wind tunnel for Bentley model streamlining experiments. | 7th Jul 1933 | Box 160 \ 2 scan0143 | |
| The second page of a typed letter, concluding with an invitation. | 8th Jul 1933 | Box 160 \ 2 scan0144 | |
| Letter from Birmingham Central Technical College acknowledging a letter about traction and air resistances for cars. | 8th Jul 1933 | Box 160 \ 2 scan0145 | |
| Letter to Messrs Vickers (Aviation) Ltd. regarding arrangements for wind tunnel tests on an eighth-scale model of the Bentley Car. | 7th Jul 1930 | Box 160 \ 2 scan0146 | |
| Arranging wind tunnel tests for a 3 Litre Bentley with Vickers Aviation Limited. | 27th Jul 1933 | Box 160 \ 2 scan0147 | |
| List of configurations for wind tunnel tests on a Bentley model. | 27th Jul 1933 | Box 160 \ 2 scan0148 | |
| Letter to Vickers (Aviation) Ltd. confirming arrangements for wind tunnel tests on eighth-scale Bentley models. | 27th Jul 1933 | Box 160 \ 2 scan0149 | |
| Results of wind tunnel tests on a 3 Litre Bentley, comparing a standard model with a new, aerodynamically improved version. | 3rd Aug 1933 | Box 160 \ 2 scan0150 | |
| Seating configuration and performance of a new 100 m.p.h. car. | 3rd Aug 1933 | Box 160 \ 2 scan0151 | |
| From Hs. to Roy requesting an order be sent to Messrs. Vickers Aviation Co. | 23th Sep 1933 | Box 160 \ 2 scan0152 | |
| Results of wind tunnel tests on a streamlined Bentley car. | 7th Nov 1935 | Box 160 \ 2 scan0153 | |
| Requesting tabulated results from a second series of wind tunnel tests on a streamlined car model. | 7th Nov 1933 | Box 160 \ 2 scan0154 | |
| Confirming that road test results for a streamlined Bentley car matched wind tunnel test forecasts. | 8th Nov 1933 | Box 160 \ 2 scan0155 | |
| Modernization and performance testing of a Streamlined Bentley B.23.AE. | 21th Nov 1933 | Box 160 \ 2 scan0156 | |
| Wet weather driving, side spare wheel carriers, and wind tunnel tests for a streamlined car. | 27th Nov 1933 | Box 160 \ 2 scan0157 | |
| Wind tunnel test results for a Standard Saloon and a Streamline Car. | 28th Nov 1933 | Box 160 \ 2 scan0158 | |
| Wind tunnel tests on a Bentley, comparing the flat plate and reflexion/reflex test methods. | 28th Nov 1933 | Box 160 \ 2 scan0159 | |
| Letter requesting copies of a wind tunnel report and discussing discrepancies in drag co-efficient results with American tests. | 30th Nov 1933 | Box 160 \ 2 scan0160 | |
| Results and comparison of wind tunnel tests on a Bentley saloon car. | 4th Dec 1933 | Box 160 \ 2 scan0161 | |
| Analysis of saloon car performance based on wind tunnel data and various aerodynamic modifications. | 4th Dec 1933 | Box 160 \ 2 scan0162 | |
| Report page discussing vehicle aerodynamics, customer suggestions, and performance tests related to drag. | 4th Dec 1933 | Box 160 \ 2 scan0163 | |
| Appendix from wind tunnel tests comparing performance calculations for a standard and a streamlined saloon. | 4th Dec 1933 | Box 160 \ 2 scan0164 | |
| Page of calculations for determining vehicle lap speeds from horsepower and drag. | 4th Dec 1933 | Box 160 \ 2 scan0165 | |
| Calculations on the aerodynamic drag of a streamlined saloon car, comparing forward and reverse motion and the effect of increased power on speed. | 30th Jan 1933 | Box 160 \ 2 scan0166 | |
| Blueprint comparing the frontal area calculations for different saloon car body styles. | 30th Jan 1933 | Box 160 \ 2 scan0167 | |
| Wind tunnel test results and calculated performance figures for a 3 1/2 Litre Bentley model. | 30th Jan 1933 | Box 160 \ 2 scan0168 | |
| Wind tunnel test results for a 3 1/2 Litre Bentley, detailing model configurations and performance data. | 13th Feb 1934 | Box 160 \ 2 scan0169 | |
| Wind tunnel tests on cars and the implications for Bentley streamline body designs. | 13th Feb 1934 | Box 160 \ 2 scan0170 | |
| Confidentiality of information obtained from wind tunnel tests on cars. | 20th Feb 1934 | Box 160 \ 2 scan0171 | |
| Outlining the general basis for testing wind noises in cars. | 20th Feb 1934 | Box 160 \ 2 scan0172 | |
| Analysis of wind noise mechanics and test results for a Bentley 4 Door Saloon with a sunshine roof. | 20th Feb 1934 | Box 160 \ 2 scan0173 | |
| Wind noise analysis and remedies for saloon car bodies, detailing the effects of taping various joints and pillars. | 20th Feb 1934 | Box 160 \ 2 scan0174 | |
| Investigation into wind noise on a 25 HP Park Ward Standardised Saloon with a sunshine roof. | 20th Feb 1934 | Box 160 \ 2 scan0175 | |
| Analysis of noise reduction modifications for a sunshine roof, including a diagram and conclusions from tests. | 20th Feb 1934 | Box 160 \ 2 scan0176 | |
| Analysis of bodywork design to reduce wind noise, comparing door shut resonance to a toy whistle. | 22th Feb 1934 | Box 160 \ 2 scan0177 | |
| Letter to Park Ward & Co. detailing modifications to an experimental Bentley Saloon to reduce wind noise. | 22th Feb 1934 | Box 160 \ 2 scan0178 | |
| Instructions for coachbuilder Park Ward & Co. on modifying a sunshine roof and bodywork to reduce noise. | 22th Feb 1934 | Box 160 \ 2 scan0179 | |
| Letter to Park Ward & Co. about reducing air noise by modifying the direction indicators. | 22th Feb 1934 | Box 160 \ 2 scan0180 | |
| Testing and rectifying wind noises from the sunshine roof and doors on a Standardised Bentley Saloon. | 22th Feb 1934 | Box 160 \ 2 scan0181 | |
| Investigations into car body wind noise and proposed improvements. | 22th Feb 1934 | Box 160 \ 2 scan0182 | |
| Proposing to use an Essex Terraplane as a benchmark to address wind noise issues in car bodies. | 26th Feb 1934 | Box 160 \ 2 scan0183 | |
| Wind noises in cars and the status and location of an Essex Terraplane. | 27th Feb 1934 | Box 160 \ 2 scan0184 | |
| Inquiring about the proposed schedule for wind tunnel tests on cars. | 7th Mar 1934 | Box 160 \ 2 scan0185 | |
| Proposal for further wind tunnel tests on a modified Streamline Bentley B.23-AE model. | 24th Feb 1934 | Box 160 \ 2 scan0186 | |
| Proposing a programme for wind tunnel tests on various car models. | 22th Mar 1934 | Box 160 \ 2 scan0187 | |
| Following up on recommendations for reducing wind noise on Bentley and R.R. chassis. | 18th May 1954 | Box 160 \ 2 scan0188 | |
| Wind tunnel test to compare cycle-type wings with standard wings on a Bentley. | 17th Jul 1934 | Box 160 \ 2 scan0189 | |
| Wind tunnel tests for Bentley, comparing cycle type wings with an alternative design seen on an Alvis. | 17th Jul 1934 | Box 160 \ 2 scan0190 | |
| Letter from The Houdaillle Hydraulic Suspension Co. Ltd. to Bentley Motors regarding a patent for Parallite streamlined coachwork. | 16th Jul 1934 | Box 160 \ 2 scan0191 | |
| Advertisement for Parallite stream-lined coachwork by The Houdaille Hydraulic Suspension Co., Ltd. | 16th Jul 1934 | Box 160 \ 2 scan0192 | |
| The benefits of 'Parallite' body design focusing on ventilation, coachwork, and luggage space, with illustrations of alternative car designs. | 16th Jul 1934 | Box 160 \ 2 scan0193 | |
| The advantages of the 'Parallite' body design regarding luggage, passengers, safety, and performance. | 24th Jul 1934 | Box 160 \ 2 scan0194 | |
| Outlining the plan for wind tunnel tests on a Bentley car. | 24th Jul 1934 | Box 160 \ 2 scan0195 | |
| Letter detailing the results of wind tunnel tests, including drag reduction, horsepower and windage calculations. | 28th Jul 1934 | Box 160 \ 2 scan0196 | |
| Preliminary calculation of predicted speed. | 28th Jul 1934 | Box 160 \ 2 scan0197 | |
| Letter detailing the results and calculations from wind tunnel tests on a car. | 28th Jul 1934 | Box 160 \ 2 scan0198 | |
| Wind tunnel tests performed on the Ulster T.T. Car, a Bentley B.35.AE. | 22th Aug 1934 | Box 160 \ 2 scan0199 | |
| Analysis of aerodynamic improvements comparing open cars and streamline saloons, with proposals for new body designs. | 22th Aug 1934 | Box 160 \ 2 scan0200 | |
| The importance of aerodynamic shapes over increased power for car performance, specifically for racing Bentleys. | 22th Aug 1934 | Box 160 \ 2 scan0201 | |
| Appendix detailing performance calculations for a Standard Saloon and model E-35-AE. | 22th Aug 1934 | Box 160 \ 2 scan0202 | |
| Appendix page with vehicle performance calculations for Test 2 and Test 6 (Streamline Saloon). | 22th Aug 1934 | Box 160 \ 2 scan0203 | |
| Performance calculations and analysis of lap speeds and windage drag for car models B-23-AE and B-35-AE. | 22th Aug 1934 | Box 160 \ 2 scan0204 | |
| Photographs documenting the wind tunnel model development for a racing car through various tests. | 22th Aug 1934 | Box 160 \ 2 scan0205 | |
| Blueprint of a car's rear view with area calculations for the Ulster T-T Race. | 22th Aug 1934 | Box 160 \ 2 scan0206 | |
| Wind tunnel and performance test results for a 1/8 scale model of the Bentley B.35.AE. | 28th Jan 1935 | Box 160 \ 2 scan0207 | |
| Side profile photograph of a scale model for a streamlined car. | 28th Jan 1935 | Box 160 \ 2 scan0209 | |
| Photograph of a rear view of a streamlined car design model. | 28th Jan 1935 | Box 160 \ 2 scan0210 | |
| Letter from 'Bly.' to 'Rm' discussing Bentley publicity, a special 'Paulin' car, and concerns about experimental bearing failures. | 1st Dec 1938 | Box 160 \ 3 scan0001 | |
| Letter discussing a new bearing alloy and arranging an inspection of a Paulin Bentley. | 1st Dec 1938 | Box 160 \ 3 scan0002 | |
| Numbered response to notes on publicity, discussing car performance, reliability, and comparisons with Bentley vehicles. | 1st Dec 1938 | Box 160 \ 3 scan0003 | |
| Car models, specifically comparing Paulin, Hall, and Lagonda vehicles. | 1st Dec 1938 | Box 160 \ 3 scan0004 | |
| Vehicle performance comparisons for publicity purposes. | 1st Dec 1938 | Box 160 \ 3 scan0005 | |
| Car design philosophy, performance modifications, and market perception. | 1st Dec 1938 | Box 160 \ 3 scan0006 | |
| Competitor analysis (Lagonda), publicity strategy for Bentley, and vehicle performance. | 1st Dec 1938 | Box 160 \ 3 scan0007 | |
| Note on how increased body weight and poor aerodynamics negated engine power improvements in the Bentley. | 1st Dec 1938 | Box 160 \ 3 scan0008 | |
| Investigation into bearing and cylinder bore wear, discussing the development of a new bearing alloy. | 1st Dec 1938 | Box 160 \ 3 scan0009 | |
| Memo regarding competitive strategy, reliability, and advertising. | 1st Dec 1938 | Box 160 \ 3 scan0010 | |
| Secret memo regarding Bentley publicity and a potential 120 mph press run. | 1st Dec 1938 | Box 160 \ 3 scan0011 | |
| Secret memo outlining suggestions for a Bentley publicity event, specifically a 24-hour endurance run at Montlhery. | 1st Dec 1938 | Box 160 \ 3 scan0012 | |
| Secret internal memorandum outlining a publicity plan for Bentley automobiles. | 29th Nov 1938 | Box 160 \ 3 scan0013 | |
| Potential publicity articles on car body construction, product durability, and performance. | 29th Nov 1938 | Box 160 \ 3 scan0014 | |
| Proposal for a high-speed road test of modified Bentley cars on the German Autobahn for publicity. | 29th Nov 1938 | Box 160 \ 3 scan0015 | |
| Road race and track publicity possibilities, including entering the Le Mans 24-hour race. | 29th Nov 1938 | Box 160 \ 3 scan0016 | |
| High-speed car project with driver George Eyston, including potential modifications, comparisons to other cars, and publicity strategy. | 29th Nov 1938 | Box 160 \ 3 scan0017 | |
| Summary of performance data and press mentions for an 8-litre car. | 1st Dec 1938 | Box 160 \ 3 scan0018 | |
| Points on Bentley Publicity ahead of a Friday meeting. | 1st Feb 1938 | Box 160 \ 3 scan0019 | |
| Bentley publicity, a proposed 100 m.p.h. endurance run, and addressing owner complaints about vehicle reliability. | 7th Dec 1938 | Box 160 \ 3 scan0020 | |
| Bentley bearing performance, owner feedback, publicity from racing, and potential vehicle improvements. | 1st Dec 1938 | Box 160 \ 3 scan0021 | |
| List of customers, chassis numbers, and mileages, with a note regarding potential bearing trouble. | 1st Dec 1938 | Box 160 \ 3 scan0022 | |
| Preparations and objectives for testing the Paulin car in France. | 29th Dec 1938 | Box 160 \ 3 scan0023 | |
| Arrangements for a press run of the Paulin Bentley, including modifications and testing at Montlhery. | 29th Dec 1938 | Box 160 \ 3 scan0024 | |
| The preparation and placement of publicity articles for Bentley. | 30th Dec 1938 | Box 160 \ 3 scan0025 | |
| Secret memorandum discussing a publicity strategy for Bentley vehicles. | 2nd Jan 1939 | Box 160 \ 3 scan0026 | |
| Request to fit high compression pistons to car 6.B.4 for a publicity run rehearsal on the Paulin Bentley. | 2nd Jan 1938 | Box 160 \ 3 scan0027 | |
| Arrangements for a Press Representative to receive information for a 'Write-up' on the Engineering Department. | 3rd Jan 1939 | Box 160 \ 3 scan0028 | |
| Requesting high compression pistons to be fitted to a Paulin Bentley for a press run. | 2nd Jan 1938 | Box 160 \ 3 scan0029 | |
| List of parts to be sent by Air Mail to the Paris Depot for a Paulin Bentley II chassis. | 3rd Jan 1939 | Box 160 \ 3 scan0030 | |
| Planning of a press run and performance tests for a Paulin Bentley. | 29th Dec 1938 | Box 160 \ 3 scan0031 | |
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