This BMW E30 was built by Jacob Sport in Lescar, France. The cutout in the hood reveals a Mercedes E55 AMG supercharger on top of a BMW 4.8 L N62B48 V8. The unique combination produces around 500 horsepower. The V8 also features M62 oil pump, lower compression from head gasket, and custom exhaust manifolds.
Source: Jacob Sport FB page (build album)