What Car? says...
We can only imagine that some high-ups at Alpina know where the bodies are buried at BMW. Okay, that might sound a bit far-fetched, but how else do you explain the long-standing and happy partnership between one of the world’s industrial leviathans and a pint-sized outfit like Alpina?
It’s a relationship so entwined that Alpina is allowed to infiltrate BMW’s production process and spirit away all of the constituent parts required to build a whole range of cars. What’s more, these are cars that provide direct competition to BMW’s top-end performance variants.