Skip advert
Advertisement

AC Schnitzer takes BMW X3 M to 591bhp

German tuning house offers visual tweaks and extra power for BMW’s performance SUV

As you can imagine given our recent review, the best method for improving BMW’s X3 M would be to melt everything down and turn it into a different car entirely, but for those more inclined to modify, AC Schnitzer’s new line of components might be of interest.

Central to the changes is a performance upgrade for the 3-litre straight-six, though AC Schnitzer also offers components for the suspension, styling and interior, as well as a couple of new wheel and tyre packages.

Advertisement - Article continues below

As standard, the X3 M’s six-pot – it will also arrive in the next-gen BMW M3 and M4 – makes 503bhp at 6250rpm. The relative ease of extracting performance from turbocharged engines means Schnitzer has been able to take this up to 591bhp, which should in theory drop the standard 4.1sec 0-62mph time under four seconds.

BMW X3 M 2020 review – the right ingredients in a very wrong package

Putting this power to the ground is a set of either AC1 or AC2-design alloy wheels, the former being 20 inches in diameter and the latter a full 22 inches. The smaller option comes wrapped in 255/45 and 265/45 tyres front and rear, with the 22s and their nine-inch width coming with 265/35s up front and 275/35s on the back axle.

Further altering the car’s stance is AC Schnitzer’s spring kit, trimming 20-25mm from the ride height at both ends of the car. Hopefully this won’t exacerbate the X3 M’s startlingly poor ride quality, nor put some of Schnitzer’s new aero components at risk. Available exterior parts include a front splitter, a small rear wing installed within the existing spoiler, and protective film for the rear skirt.

Interior changes are modest, focusing on Schnitzer’s usual aluminium components: a set of pedals, a footrest cover, a keyholder and an iDrive controller cover, plus perhaps the most welcome change, a set of new gearshift paddles to replace BMW’s usual plastic items.

Skip advert
Advertisement
Skip advert
Advertisement

Most Popular

This secret British sports car is a £5m gamble, inspired by Lotus and with Ferrari looks
Wells Vertige
Features

This secret British sports car is a £5m gamble, inspired by Lotus and with Ferrari looks

Robin Wells fancied a new sports car so decided to build his own. The result is the Wells Vertige, and now you can have one too
28 Apr 2026
Volvo XC90 review – still the king of the school run or past its best?
Volvo XC90 front
Reviews

Volvo XC90 review – still the king of the school run or past its best?

Volvo’s star flagship family car has been renewed with more hybrid power, sharper tech and looks and competitive pricing
30 Apr 2026
New Mercedes-Benz CLA Shooting Brake review – a good electric car, if not a thrilling driver’s car
Mercedes-Benz CLA Shooting Brake front
Reviews

New Mercedes-Benz CLA Shooting Brake review – a good electric car, if not a thrilling driver’s car

Mercedes-Benz keeps the Shooting Brake alive with the new CLA – it’s practical, efficient and refined, if not massively fun
28 Apr 2026