BMW M5 G90/G99 Buying Guide

BMW’s latest M5 generation — the G90 saloon and G99 Touring — marks a significant shift in the M division’s philosophy. With hybrid powertrains, increased weight, and a broader focus on daily usability, these cars aren’t just evolutions of the F90 — they’re something entirely new.
Looking to spice up your G90/G99 M5? Check out our dedicated page here.
Powertrain & Performance
Both models feature a plug-in hybrid setup combining a 4.4-litre twin-turbo V8 with an electric motor, producing a combined 717bhp and 738lb ft of torque. Despite weighing over 2.4 tonnes, acceleration is brisk: 0–62mph in 3.6 seconds. The hybrid system allows for short-range EV driving, useful for urban commutes or early morning starts without waking the neighbours.
Handling remains sharp thanks to rear-wheel steering, adaptive dampers, and xDrive all-wheel drive. The Touring (G99) adds practicality with minimal compromise in dynamics — a rare feat in this segment.
Interior & Tech
Inside, the G90/G99 leans heavily into luxury. Think 7 Series comfort with M-specific touches. The latest iDrive 8.5 system is a notable improvement, offering responsive controls and cleaner navigation. However, some materials — like piano black trim — attract fingerprints and may not feel premium enough for the price point.
Optional Extras Worth Considering
BMW offers a wide range of factory and M Performance upgrades. Here are a few worth looking into:
- Carbon Ceramic Brakes: Ideal for spirited driving or track use. They reduce unsprung weight and improve fade resistance.
- M Carbon Exterior Package: Includes mirror caps, rear diffuser, and front splitter. Enhances the car’s presence without going overboard.
- Rear Axle Steering: Standard on most builds, but worth confirming. It improves low-speed manoeuvrability and high-speed stability.
- M Driver’s Package: Raises the top speed to 190mph and includes a BMW driving course — a nice touch for first-time M owners.
- Upgraded Wheels & Tyres: Michelin Pilot Sport S 5 or Pirelli P Zero Corsa are available. Both offer excellent grip, but the Michelins are more consistent across varied conditions.
- Interior Upgrades: M Performance floor mats, carbon trim, and a leather key case are subtle but satisfying additions.
- Exhaust Options: Akrapovič offers a titanium slip-on system with carbon tips. It’s lighter, road legal, and adds a deeper tone without excessive volume.
Final Thoughts
The G90 and G99 M5s are not just fast — they’re versatile. Whether you’re chasing lap times or school runs, they adapt. While long-term reliability and quirks are still unknown, early impressions suggest BMW has built a well-rounded performance car for the modern era.
If you’re coming from an F90 or earlier, expect a shift in character. Less raw, more refined — but still unmistakably M.