This 1990 Mercedes 300E (W124) originally came with a 3.0 L M103.983 inline-six. It is now powered by a turbocharged 2.5 L Toyota 1JZ inline-six. The 1JZ motor features ID1050X injectors, custom exhaust manifold, Drift Motion turbocharger kit, DieselPumpUK intercooler, and Link ECU. The drivetrain uses a Nissan CD009 six-speed manual transmission and one-piece driveshaft. The car rides on Godspeed coilovers and stops thanks to SL500 (R129) brakes. Those are covered by AMG Monoblock 18-inch wheels wearing Lionhart LH-503 tires (225/40, 255/35). You can find this unique Mercedes for sale on Bring a Trailer.
Source: Bring a Trailer