The Mercedes-Benz M275 (and similar M285) engine is a twin-turbocharged and intercooled, all-aluminium, 60° V12 automobile piston engine family used in the 2000s to the 2010s. It is loosely based on the M137 naturally aspirated V12 sold between 1998 and 2002, and retains its SOHC, 3 valves per cylinder, twin-spark ignition layout, but differs with the addition of structural reinforcements to the engine block for improved rigidity which in turn yields greater reliability. Several variations of the M275 V12 Bi-turbo engine have powered many top-of-the-range Mercedes-Benz and Maybach models since 2003. M275 Bore and stroke is giving a displacement of . Power output ranges from to at 5000 rpm and to of torque at 1800–3500 rpm. Applications: 2003–2013 S 600 2003–2014 CL 600 2003–2011 SL 600 M275 AMG The M275 AMG is a version, with boost pressure reaching at maximum, and uses air-to-liquid intercoolers. Bore and stroke are increased to . Output is or later at 4800–5100 rpm with of torque at 2000–4000 rpm. It uses an ECI ignition system for the two spark plugs per cylinder, which helps with combustion and to support Ionic current measurement function sequence. The top of the range variant fitted in the SL 65 AMG Black Series, which is equipped with 12% larger turbochargers, generates at 4800–5400 rpm and of torque at 2200–4200 rpm. However, due to the torque abundance to power the rear wheels, the SL65 Black is still limited to . Applications: 2004–2013 S 65 AMG 2004–2014 CL 65 AMG 2004–2011 SL 65 AMG 2012-2015 G 65 AMG 2005 Maybach Exelero 2007 Stola Phalcon 2005–2012 Maybach 57 and 62 "S" trims 2006 Fisker Tramonto V12 2005 Laraki Fulgura V12 M285/M285 AMG The M285 and his AMG version of this engine built in Stuttgart, Germany specifically for Maybach badged products. Bore and stroke is . Output is from at 5250 rpm with of torque at 2300-3000 rpm to 463 kW (630 PS; 621 hp) at 5250 rpm with 1000 N·m (764 lb·ft). The cylinders are lined with silicon/aluminium, and uses fracture-split forged steel connecting rods. Spanish supercar manufacturer Tramontana uses a 5.5-liter, twin-turbocharged M285 AMG engine in its cars. On the top model Tramontana XTR, it produces 653 kW (888 PS; 881 hp) and 1,100 N·m (809 lb·ft). In 2015, the public will be presented a deforced model Tramontana S with a capacity of 580 hp. Applications: 2003–2012 Maybach 57 and 62 2011