2014 BMW Alpina B4 Biturbo Tokyo Motor Show

Legendary BMW tuner Alpina is expanding its range with a brand new line, the B4, now that BMW’s 3-Series Coupe has been replaced by the 4-Series. The car made its debut this week in B4 Biturbo trim at the 2013 Tokyo Motor Show, where Alpina also showed off its B3 model based on the BMW 3-Series sedan.

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Tokyo Motor Show

The B4 Biturbo is based on BMW’s 435i which comes standard with a twin-turbocharged 3.0-liter straight-six. Extensive modifications, however, sees the car’s output rise to 410 horsepower and 442 pound-feet of torque. What’s more impressive is that as much as 405 pound-feet of torque is generated from as low as 2,200 rpm and maintained all the way up to 5,200 rpm.

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Tokyo Motor Show

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Tokyo Motor Show

The list of modifications includes custom turbochargers, an uprated cooling system and a high-flow exhaust system. Alpina-specific NGK spark plugs and a forged steel high-strength crankshaft guarantee long-lasting stability.

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Tokyo Motor Show

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Tokyo Motor Show

2014 BMW Alpina B4 Biturbo
2014 BMW Alpina B4 Biturbo Interior

Mated to a ZF eight-speed automatic transmission, the tuned engine helps accelerate the svelte coupe from 0-62 mph in just 4.2 seconds. It will reach 124 mph in 14 seconds and keep accelerating until it reaches a top speed of 189 mph. Like the engine, the transmission has also been extensively adapted to suit the performance characteristics of the new B4 Biturbo
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2014 BMW Alpina B4 Biturbo Tokyo Motor Show
2014 BMW Alpina B4 Biturbo Tokyo Motor Show
Reviewed by BlogCarShow
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Rating : 4.5