Summary:
The Alpina B6 (E63) is a high-performance grand tourer produced by Alpina, a German automobile manufacturer, from 2005 to 2010. It is the second generation of the model, based on the BMW 6 Series (E63) and available in coupé and convertible body styles. The B6 was manufactured using a modified version of the 4.4-liter N62 V8 engine, known as the H1 by Alpina. Notable changes include the use of an Alpina-specific block, a forged crankshaft, and low compression Mahle pistons.

Key Points:
1. Second Generation: The Alpina B6 (E63) is the second generation of the high-performance grand tourer produced by Alpina.
2. BMW 6 Series Base: The B6 is based on the BMW 6 Series (E63) and is offered in both coupé and convertible variants.
3. Engine Specifications: The B6 utilizes a modified version of the 4.4-liter N62 V8 engine, known as the H1, with specific enhancements by Alpina.
4. Alpina Modifications: Special features of the engine include an Alpina-specific block produced by Steyr, a forged crankshaft, and low compression Mahle pistons.
5. Production Years: The Alpina B6 (E63) was in production from 2005 to 2010

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