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G-Power trims a BMW M8 into a gentleman's super GT
G-Power has quietly released a new upgrade package for the BMW M8 Coupe, calling it the G8M Bi-Turbo. Unlike the tuner’s headline-grabbing Hurricane RS and RR builds, this version aims for a mix of high performance and restrained visual presence, turning an already potent grand tourer into something that feels both luxurious and lethal on track.
What the G8M Bi-Turbo brings to the table
Under the skin the Bi-Turbo package boosts the 4.4-liter twin-turbo V8 to roughly 808 bhp (603 kW/820 PS) and 738 lb-ft (1,000 Nm) of torque. That output sits between the milder base upgrade and the extreme Hurricane RR, offering serious pace without the full-on showcar theatrics. G-Power lists this upgrade from around €26,640 (about $31,050), making it an accessible option for M8 owners who want more straight-line speed and midrange shove.
Key highlights:
- Power: 808 bhp (603 kW/820 PS)
- Torque: 738 lb-ft (1,000 Nm)
- Starting price for the package: €26,639.74
Design tweaks: subtle, not subdued
The pictured M8 wears a deep green paint with select carbon fiber accents, a combination that reads more gentlemanly than aggressive. G-Power fitted a carbon bonnet, a rear wing, gold-toned wheels, redesigned exhaust tips and an engine cover with G-Power badging. The result is a tailored look that amplifies presence without turning the coupe into a circus act.
To some purists the coupe looks better stock, but many owners will appreciate the added bite the aero pieces provide, especially when paired with the upgraded powertrain and bespoke wheels.
Performance range and other upgrade tiers
G-Power offers a tiered approach so buyers can choose how far they want to push their M8:
- Base Stage: about 690 bhp (515 kW/700 PS) and 627 lb-ft (850 Nm), priced very affordably at roughly €2,495 ($2,905)
- G8M Bi-Turbo: the middle ground at 808 bhp and 738 lb-ft, the focus of this story
- Hurricane RR: the full-throttle upgrade, climbing to approximately 887 bhp (662 kW/900 PS) and 774 lb-ft (1,050 Nm), starting from around €119,000 ($138,700) for the package alone
Note that these figures apply to the upgrade kit; the cost excludes the donor car itself.
How it stacks up in the market
This M8 swap sits in a competitive niche: it is faster than many stock grand tourers and will likely out-run more pampered luxury coupes in a straight line or on a lap, yet it keeps a degree of composure that full-blown track specials lack. Compared to something like the Bentley Continental GT, the G8M-equipped M8 is less focused on ultimate refinement and more on delivering driver-focused performance and raw capability.
Who should consider it
- Enthusiasts who want substantial power without extreme visual overhaul
- Owners seeking a performance upgrade with modular options
- Drivers who want track-capable pace while retaining grand touring comfort
'The G8M Bi-Turbo is a persuasive middle path between mild tuning and extreme excess', says many tuners and owners exploring upgrade packages.
Whether you want a subtle, bespoke GT or a near-supercar M8, G-Power now has a calibrated solution. The Bi-Turbo proves that tuners can blend performance, style and value into a package that appeals to discerning drivers around the world.
Source: autoevolution
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