The new 2025 Alpina B3 GT and B4 GT have emerged with more power, chassis tweaks and subtly reworked styling that draw them closer than ever to their BMW 3 Series sedan/wagon and 4 Series coupe donor models.
On sale in Germany from November, and with right-hand drive sales set to commence early in 2025, the new B3 and B4 GTs receive a 26kW power boost to their turbocharged S58 3.0-litre inline six-cylinder engine, raising output to 389kW – 1kW shy of the latest BMW M3 and M4.
Maximum torque is 730Nm, which is a considerable increase over the 650Nm the related BMW M cars produce.
Combined with all-wheel drive and a quick-shifting eight-speed auto, the Alpina B3 GT can now hit 100km/h from rest in just 3.4sec – 0.1sec faster than the BMW M3 Competition xDrive, on its way to a 308km/h top speed.
The B3 GT wagon and B4 GT Gran Coupe, meanwhile, can both hit the 100km/h benchmark in 3.5sec before reaching a maximum speed of 305km/h.
Chassis-wise, Alpina has added a thicker anti-roll bar and new dampers on the B3, while the B4 gains fresh dampers, reinforced front suspension mounts and a fresh tune for the steering.
Finally, the B4 gains an electronically-controlled rear limited-slip differential.
In the flesh, the B3 and B4 GTs gain a new front splitter that gets small canards, a gloss black diffuser and black tailpipe finishers at the rear.
The B4 also adopts the new BMW M4’s upgraded headlights and tail-lights, while the B3 now rides on the same 20-inch alloy wheels that were previously only available on the B4.
Pricing in Germany for the B3 GT starts at €101,700 ($A165,000), €102,900 ($A188,300) for the B3 GT Touring and €105,100 ($A172,000) for the B4 GT Gran Coupe.
Australian-market details are still to be confirmed.
Join the conversation at our Facebook page
Or email us at editor@carsales.com.au