BMW M5 CS revealed with 635hp: price, specs and release date

Nick Lette van Oostvoorne
Nick Lette van Oostvoorne
January 26, 2021

The recently updated BMW M5 has been given the CS treatment thanks to revised suspension, cosmetic upgrades, and more power, making this 635hp saloon is the most powerful M car ever made. 

  • 635hp twin-turbo V8
  • 0-60mph in 3.0 seconds
  • 189mph top speed
  • 70kg lighter than an M5
  • M8-derived upgrades
  • New laser headlights
  • Carbon-fibre panels
  • On sale in Spring 2021
  • Costs from £140,780

The new BMW M5 CS is to the standard M5 what the M2 CS is to the standard BMW M2 – a limited-edition track-focussed model that’s faster, lighter and more expensive. This £140,000 super-saloon is an alternative to the likes of the Mercedes-AMG GT63S Four-Door and will go on sale in Spring 2021.

New BMW M5 CS engine and power

The new BMW M5 CS is the most powerful roadgoing M car ever made. 

The most powerful version of the BMW M5 Competition comes with a twin-turbocharged 4.4-litre V8 with 625hp, but the new M5 CS gets 635hp thanks to revised turbochargers and modified oil and cooling systems. The new car’s 750Nm torque figure is no higher than the standard M5 Competition’s, however.

New BMW M5 CS performance and driving

New brakes and carbon body panels make the CS 70kg lighter than the standard M5.

The new BMW M5 CS isn’t just more powerful than the standard M5 and M5 Competition – it’s also lighter. Standard-fit carbon-ceramic brakes (that resist high temperatures better than steel discs) are 23kg lighter, while the M5 CS’s redesigned carbon-fibre bonnet, spoiler and rear diffuser up the total amount of weight saved over a standard M5 to 70kg.

The M5 CS is the quickest-accelerating BMW you can buy – for now…

This diet has helped make the BMW M5 CS significantly quicker than the standard car – it’ll cover the 0-60mph sprint in three seconds flat. That’s 0.3 seconds faster than an M5 Competition and 0.2 seconds faster than an M8 Competition – previously the quickest-accelerating BMW you could buy.

The M5 Cs’s suspension is lower and stiffer than in an M5.

This new range-topping M5 also comes with revised suspension. This borrows parts from the BMW M8 Gran Coupe Competition and makes the new CS model 7mm lower than the standard M5. ALso new for the CS are stiffer engine mounts designed to make the engine feel more responsive and the car more agile in tight corners.

New BMW M5 CS design

This green and bronze colour scheme is exclusive to the M5 CS. 

The standard BMW M5 has just been revised with some new headlights and subtly tweaked bumpers (thought you’d have to be a die-hard M-car fan to spot them.)

These upgrades have made their way onto the new M5 CS, along with a few extras, including a bronze grille surround, exclusive 20-inch bronze-painted alloy wheels and yellow-tinted daytime running lights inspired by classic BMW racing cars as well as the original BMW M8 Gran Coupe Concept.

Yellow daytime-running lights are inspired by classic racing BMWs.

The headlights themselves come with BMW’s latest adaptive laser technology, which can selectively brighten specific areas of the road ahead to avoid dazzling other drivers.

This carbon-fibre rear spoiler only comes on the M5 CS.

Fancy this green paint on this car? It’ll only be available on the new BMW M5 CS, along with a grey hue with a glossy or matte finish.

New BMW M5 CS interior

New bucket seats are the most obvious interior upgrade for the M5 CS.

The standard BMW M5 is a five-seater, but the new M5 CS comes with an exclusive four-seat layout. Instead of a rear bench, every passenger gets their own carbon-fibre-backed sports seat.

Don’t go thinking these are spine-straightening race-seats, though – they still come with posh leather trim, electric adjustment, pneumatic backrests and some oh-so-classy (if that’s your thing) light-up M logos in the front.

Only the M5 CS gets these individual rear bucket seats. 

Other tweaks for the M5 CS model include a new steering wheel with Alcantara (read ‘faux suede’) trim and carbon-fibre gear-shift paddles. You get the same customisable M1 and M2 buttons as on the standard car, so you can quickly call-up the CS’s most hard-core driving modes without fussing about with menus in the infotainment system.

Watch our BMW M5 video review

Speaking of which, the new BMW M5 CS gets the same 12.3-inch touchscreen infotainment system as the updated M5 with BMW’s handy personal assistant voice-recognition system.

New BMW M5 CS price and release date

The new M5 CS costs from £140,780. 

The new BMW M5 CS will go on sale in Spring 2021 and set you back £140,780. That makes it almost as expensive as high-spec versions of the M8, M8 Gran Coupe and M8 Convertible.

Can’t wait for the new M5 CS to go on sale? Head over to our in-depth BMW M5 review page to get all the info on the standard car, including Mat’s detailed video. Or, check out the latest BMW offers available through carwow. 

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