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Introduction
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The B9 3.5 Coupé/1 was introduced in 1983 as the successor to the B9 3.5 Coupe.
In 1985, the B9 3.5 Coupe was replaced by the B10 3.5 Coupe.
Engine/Gearbox
The engine is identical to that of the E28 B9 3.5 and is based on BMW´s 3.5 litre unit with some relatively minor modifications. Alpina installed Mahle pistons and a more aggressive camshaft, modified the cylinderhead and combustion chambers and reprogrammed the Motronic system. The result is 245 bhp and 320 Nm torque.
The manual 5-speed gearbox is made by Getrag.
Suspension/Brakes/Wheels
The B9 3.5 Coupé/1 uses the Alpina-Bilstein suspension with progressive springs and gas-pressure dampers. Behind the 16″ Alpina alloys with 205/55 tires front and 225/50 rear are ventilated discs all around.
Interior/Exterior
The B9 3.5 Coupé/1 has Recaro sport-seats. It also have a leather-covered steering-wheel and new instruments.
Exterior changes include a new front spoiler and rear spoiler.
Performance
In Auto Motor und Sport´s test the B9 accelerated from 0-100 km/h in 7,3 seconds and had a top speed of 238,4 km/h.
Production
A total of 73 cars were built between 1983 and 1985.