The 2.3-liter inline-four is comprised of an S14 block sourced from an E30 M3 with a 2002-sourced cylinder head ported and matched to the intake manifold by Korman Autoworks.Power is sent to the rear wheels through a five-speed manual transmission and a limited-slip differential, both to be sourced from an E21 3-Series.The digital odometer shows 62k miles, with total mileage unknown.