Skip advert
Advertisement

BMW M635 CSi E24 - Best BMW M cars

The shark nose M635 CSi exudes retro charm today but still packs a mighty punch

Powered by the same 3.5-litre straight-six as the M1, but with fuel injection and, therefore, a touch more power, the 286bhp M635 CSi first appeared in 1984, when Filofaxes were the things to be seen carrying and mobile phones had yet to be invented for the masses. It was the era of big hair and wide shoulder pads, which meant a suave-looking coupe such as the M635 CSi fitted right in – if indeed you could afford to buy one. 

Advertisement - Article continues below

At £45,780 it was eye-wateringly expensive for its time, yet in the end BMW made 5,855 examples, the identically powered E28 M5 selling in far fewer numbers (2,241 in total) but gaining more credibility in the process among the M-car cognoscenti.

On the surface, it’s not difficult to see why. Whereas the E28 M5 was a tautly suspended weapon of a car, and was the first genuine super-saloon, the M635 was a far softer, less aggressive, more chilled machine with packaging that would be deemed laughable today. 

What’s the BMW M635i like to drive?

Steve Sutcliffe tries it out on track

To drive, it still feels relevant, even if it’s ultimately a relic from a bygone age. The ride is deeply soothing, the power-steering light and accurate enough to allow you to place that big, charismatic nose with reasonable precision through any corner. It’s relaxed but not remote, and its engine and five-speed manual gearbox are both an absolute delight, sweeter and more potent than those of the M1. The cleaner response of the fuel-injection system undoubtedly makes a big difference to its driveability.

Truth is, I thought the M635 CSi would feel old and irrelevant next to more modern M cars, but in the end I loved it and was once again amazed at how well it has stood the test of time. 
 

BMW M635 CSi  (1983-1988) specs and prices

  • Price new: £45,780
  • Value now: £20,000
  • Production: 5,855 (1983-1988)
  • Engine: 3.5-litre 6cyl
  • Power/torque: 286bhp/340Nm
  • 0-62mph: 6.1 seconds 
  • Top speed: 158mph
  • Gearbox: Five-speed manual
  • Weight: 1,450kg
Skip advert
Advertisement
Continue Reading
Current affairs and features editor

Chris covers all aspects of motoring life for Auto Express. Over a long career he has contributed news and car reviews to brands such as Autocar, WhatCar?, PistonHeads, Goodwood and The Motor Trader.

Skip advert
Advertisement

Recommended

New BMW M3 spotted with straight-six power, radical design and no plug
Petrol BMW M3 - front 3/4

New BMW M3 spotted with straight-six power, radical design and no plug

For the first time ever, M3 customers will be able to choose between petrol and electric
News
17 Jul 2026
Goodwood Festival of Speed 2026: Your guide to all the key cars
Goodwood 2026

Goodwood Festival of Speed 2026: Your guide to all the key cars

2026’s Goodwood Festival of Speed was an exceptional celebration of cars from the past, present and future! These were the top reveals and star cars…
News
13 Jul 2026
Best new cars coming soon: all the big new car launches due in 2026, 2027 and beyond
Best new cars coming soon 30/06/26

Best new cars coming soon: all the big new car launches due in 2026, 2027 and beyond

Here are the most important new cars from Alfa Romeo, Audi, BMW, Dacia, Ferrari, Ford, Skoda and more
Best cars & vans
30 Jun 2026
Best 60s cars: the 35 greatest cars of the 1960s
Best cars of the 1960s - header image

Best 60s cars: the 35 greatest cars of the 1960s

The swinging sixties brought a vast array of unforgettable cars that would establish the path of the industry for decades to come. We pick our top 35 …
Best cars & vans
16 Jun 2026

Most Popular

Long-term test: BMW iX3 50 xDrive M Sport Pro
BMW iX3 long-term test - header

Long-term test: BMW iX3 50 xDrive M Sport Pro

First report: Award-winning first Neue Klasse BMW gets off to a strong start on our fleet
Long-term tests
18 Jul 2026
Used Nissan Ariya (Mk1, 2021-date) buyer's guide: low prices make EV even more appealing
Used Nissan Ariya - front

Used Nissan Ariya (Mk1, 2021-date) buyer's guide: low prices make EV even more appealing

A full used buyer's guide on the Nissan Ariya that has been on sale in the UK since 2021
Used car tests
19 Jul 2026
New Jeep hybrid SUV aims to out-muscle Land Rover's Defender, with some help from China
Jeep D-segment SUV - front static

New Jeep hybrid SUV aims to out-muscle Land Rover's Defender, with some help from China

Want a Defender, but can’t stretch to one? Jeep’s new cut-priced family SUV should be cheap to buy, and to run…
News
20 Jul 2026