700hp Turbocharged BMW E30 M3 Rallycross Monster

This BMW E30 M3, built by Arild Martinsen, features the rare BMW M12 2.0L turbocharged engine used in IMSA racing, producing 650hp at 2 bar boost and capable of over 700hp. Notable for its five-throttle anti-lag system, it combines a Schwitzer turbocharger with a big air-to-air intercooler and a carbon fiber plenum. Despite lacking rallycross success due to traction issues, its raw power and engineering make it a standout in motorsport history.