Spy photographers last snapped the 2022 BMW Alpina B4 Gran Coupe this summer and now the company has begun testing a more evolved prototype.
Looking closer to the production model, the latest prototype has been equipped with an Alpina splitter and rear spoiler. We can also see a modified rear bumper with a four-tailpipe exhaust system.
Additional changes are limited, but the model rides on five-spoke wheels that are backed up by a beefy braking system with blue calipers. While it’s not visible, we can also expect a sport-tuned suspension similar to the one found on the B3.
Also Read: 2022 BMW Alpina B4 Gran Coupe Spied, Could Have 456 HP
The interior is barely visible, but we can expect an assortment of changes including an Alpina-branded steering wheel wrapped in hand-stitched Lavalina leather. It should be joined by Alpina door sill plates and floor mats as well as a revised digital instrument cluster with Alpina graphics.
The biggest changes will come under the hood as the model is expected to have a turbocharged 3.0-liter six-cylinder engine that produces 456 hp (340 kW / 462 PS) and 516 lb-ft (700 Nm) of torque. This enables the B3 to accelerate from 0-62 mph (100 km/h) in 3.8 seconds and top out at 188 mph (303 km/h).
Regardless of the final numbers, the B4 Gran Coupe should be significantly more powerful than the standard M440i xDrive which has 382 hp (285 kW / 387 PS) and 369 lb-ft (500 Nm) of torque. It allows the car to run from 0-60 mph (0-96 km/h) in 4.4 seconds, before hitting a top speed of up to 155 mph (250 km/h).
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