The Alpina B5 and D5 (G30) are a series of high performance executive cars manufactured by German Automobile manufacturer Alpina. Introduced at the 2017 Geneva Motor Show,[2] the car is the third generation of the B5 and succeeds the Alpina B5 (F10). Based on the BMW 5 Series (G30), the car is available in both saloon and wagon bodystyles.
Overview
Based on the 540i X-Drive, but the B5 uses a modified 4.4-litre N63 twin-turbocharged V8 called the N63TU2. Modifications include a re-designed air intake, cooling system, higher compression Mahle pistons, twin-scroll Garrett turbos, a larger intercooler, new NGK spark plugs and revised ECU map. A lighter exhaust system also reduces back pressure. This allows a higher power output of 447 kW and 800 Nm of torque. Due to the higher torque output, the 8-speed automatic transmission, manufactured by ZF, uses stronger internals. Alpina TCU mapping allows quicker shift times and launch control.