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The car is powered by a water-cooled, single-overhead-cam, 4-cylinder, with 4 valves per cylinder, 4,500 cc (4.5-liter) engine, developing 110 horsepower coupled to a 4-speed manual transmission. The 3,630-pound car has a top speed of 94 miles per hour. The chassis consists of channel-steel, front and rear suspension by semi-elliptic leaf springs, and 4-wheel drum brakes.
Production amounted to a total of 733 cars of all body styles. Fifty-four cars were equipped with the famous supercharged engine, 'Blower Bentleys,' built by the race driver Sir Henry 'Tim' Birkin as a private venture - against W.O. Bentley's wishes.
Production amounted to a total of 733 cars of all body styles. Fifty-four cars were equipped with the famous supercharged engine, 'Blower Bentleys,' built by the race driver Sir Henry 'Tim' Birkin as a private venture - against W.O. Bentley's wishes.
No auction information available for this vehicle at this time.
1929 Bentley 4.5 Litre Auction Sales
Recent Sales of the Bentley 4.5 Litre
(Data based on Model Year 1929 sales)
| 1929 BENTLEY 4 1/2 LITRE LE MANS SPORTS TOURER Chassis#: RL3428 Sold for USD$1,545,000 2024 Gooding : Amelia Island Concours | |
| 1929 Bentley 4½-Litre Supercharged Le Mans Tourer in the style of Vanden Plas Chassis#: DS3573 Sold for USD$1,008,777 2023 RM Sothebys : London | |
| 1929 Bentley 4½-Litre 'Short-Chassis' Sports Tourer by Vanden Plas Chassis#: NX3463 Sold for USD$1,600,000 2023 RM Sothebys : Monterey |   |
| 1929 Bentley 4½-Litre Tourer by Cadogan Chassis#: DS3570 Sold for USD$687,000 2023 RM Sothebys : Amelia Island |  |
| 1929 Bentley 4½ Liter Tourer Chassis#: FB 3320 Sold for USD$604,500 2022 Bonhams : The Greenwich Auction |   |
| 1929 Bentley 4½ LITER TO SUPERCHARGED SPECIFICATIONS REPLICA LE MANS STYLE COACHWORK Chassis#: AB 3669 Sold for USD$863,000 2021 Bonhams : Quail Lodge |   |
| 1929 Bentley 4½-Litre Open Four-Seater Sports by Vanden Plas Chassis#: RL3427 Sold for USD$1,105,000 2021 RM Sothebys : Monterey |   |
| 1929 Bentley 4½ Liter Sports Tourer Chassis#: HB3410 Sold for USD$472,500 2019 Bonhams : Amelia Island |   |
| 1929 Bentley 4.5 Litre 'Le Mans' Style Tourer Chassis#: NX3457 Sold for USD$1,113,274 2018 H & H Auction - Imperial War Museum, Duxford | |
| 1929 Bentley 4½ Liter Sports Tourer Coachwork by Vanden Plas Chassis#: RL3427 Sold for USD$1,435,000 2018 Bonhams : Quail Lodge | |
| 1929 BENTLEY 4½-LITRE TOURER Chassis#: DS3551 Sold for USD$451,385 2016 Bonhams - Goodwood Members' Meeting | |
| 1929 Bentley 4½-Litre Tourer Chassis#: MR 3399 Sold for USD$1,007,788 2015 Bonhams : Bond Street Motor Car Sale |   |
| 1929 Bentley 4½-Litre Sports Saloon Chassis#: PB3527 Sold for USD$1,073,078 2015 Bonhams : The Beaulieu Sale | |
| 1929 Bentley 4.5 litre Open Tourer by Vanden Plas Chassis#: FB3322 Sold for USD$510,000 2015 Historics at Brookland | |
| 1929 Bentley Supercharged 4 ½ Litre Original two-seater Sold for USD$1,045,428 2013 Coys Auction - A236 True Greats | |
| 1929 Bentley 4½-Litre Open Tourer by Vanden Plas Chassis#: vC57S119374 Sold for USD$785,996 2013 RM Auction - London | |
| 1929 Bentley 4½-Litre Tourer Chassis#: FB3324 Sold for USD$505,510 2013 Bonhams - The Goodwood Festival of Speed Sale | |
| 1929 Bentley 4 ½ litre Vanden Plas style Tourer Chassis#: RL3441 Sold for USD$465,271 2012 Bonhams - Collectors' Motor cars and Automobilia at Goodwood | |
| 1929 Bentley 4½-Litre Four-Seat Tourer Chassis#: NX 3452 Sold for USD$740,096 2012 Bonhams - Collectors' Motor cars and Automobilia at Goodwood |   |
| 1929-31 4½-Litre Supercharged 'Blower' Bentley Single-Seater Chassis#: HB 3402 Sold for USD$7,906,745 2012 Bonhams - Collectors' Motor cars and Automobilia at Goodwood |   |
Bentley 4.5 Litres That Failed To Sell At Auction
1929 Bentley 4.5 Litre's that have appeared at auction but did not sell.
| Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
|---|---|---|---|---|---|
| 1929 Bentley 4½-Litre Supercharged Tourer by Vanden Plas | SM3903 | 2021 RM Sothebys : London | $3,800,000 | $4,200,000 | |
| 1929 Bentley 4½-Litre Tourer | 2019 Bonhams : Goodwood Revival | $480,000 | $600,000 | ||
| 1929 Bentley 4 ½ Liter Sports Tourer | FB3317 | 2019 Bonhams : Quail Lodge Auction | $700,000 | $850,000 | |
| 1929 Bentley 4½-Litre Tourer | RL3428 | 2019 Bonhams : Goodwood Members Meeting | $600,000 | $800,000 | |
| 1929 Bentley 4½-Litre Supercharged Tourer Recreation by Graham Moss | RC2209 | 2018 RM Sothebys : Monterey | $550,000 | $750,000 | |
| 1929 Bentley 4.5 Liter Le Mans Replica Fabric Tourer | PL 3496 | 2017 Bonhams : Philadelphia Simeone Foundation Automotive Museum | $600,000 | $700,000 | |
| 1929 Bentley 4½-Litre Tourer by Cadogan | DS3570 | 2015 RM Sotheby's London Auction | |||
| 1929 BENTLEY 4½-LITRE SPORTS BLUEBELL | RL3439 | 2014 The Goodwood Festival of Speed Sale | $480,000 | $560,000 | |
| 1929 Bentley 4½-Litre Tourer by Vanden Plas | NX3467 | 2014 RM Auctions Automobiles of Arizona | $1,150,000 | ||
| 1929 Bentley 4½-Litre Open Tourer by Vanden Plas | FB3317 | 2013 RM Auctions VILLA ERBA | $490,000 | ||
| 1929 Bentley 4½-Litre Tourer | FB3324 | 2013 Bonhams Collectors' Motor Cars and Automobilia | $350,000 | $400,000 | |
| 1929 Bentley 4½-Litre Drophead Coupé with Dickey | HB3405 | 2011 Bonhams The December Sale | $400,000 | $450,000 | |
| 1929 Bentley 4 1/2 Litre Two-Seat Sports | DS3568 | 2011 Gooding and Company Pebble Beach Auctions | $1,000,000 | $1,400,000 | |
| 1929 Bentley 4 1/2 Litre Open Tourer | DS3561 | 2008 Automobiles of London | $175,000 | $275,000 | $325,000 |
| 1929 BENTLEY 4 1/2 LITER DROPHEAD COUPE | 2003 Bonhams MOTOR CARS | $260,000 | $300,000 |
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1929 Bentley 4.5 Litre
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