The Toyota MR2 is a two-seat, mid-engined, rear-wheel-drive sports car manufactured in Japan and marketed globally by Toyota from 1984 to 2007 over three generations: W10 (1984–1989), W20 (1990–1999) and W30 (2000–2007). It is commonly referred to as simply the MR2 or sometimes colloquially as the Mister Two.
The first generation MR2 was introduced in September 1984. The car's chassis was based on that of the first-generation Celica but it was significantly lighter at only 2,200 pounds (998 kg) due to its use of aluminum panels for much of its bodywork. Power came from either a 1.6 L four-cylinder engine producing 112 hp (84 kW) or a turbocharged version producing 145 hp (108 kW). The engine was mounted longitudinally behind the passengers with a transaxle layout and drove the rear wheels.
The second generation of the car changed very little visually from its predecessor although mechanically almost every component was replaced. The most significant mechanical change was the introduction of Toyota's Variable Valve Timing with intelligence system which improved torque throughout most of the powerband as well as fuel economy. The engine displacement remained at 1.6 L but power increased slightly to 140 hp (104 kW). In 1988, both engines were updated with DOHC heads and received an increase in compression ratio which bumped output up to 158 hp (118 kW) for the naturally aspirated model and 168 hp (125 kW) for the turbo model. Trim levels consisted of STD, GT, Supercharged, and Turbocharged versions in both liftback and targa top form factors.
In May 1989, Toyota released details on their new 3S-GTE engine which would debut in August 1989 replacing both existing engines. The 3S-GTE is a 2.0 L inline four cylinder turbocharged engine that uses forged steel connecting rods, cast aluminum pistons with 8:1 compression ratio forged aluminium alloy wheel rims with 14 inches diameter and 6 inches width for GT models while 15 inches diameter 7 inches widths for supercharger models., five bolt pattern hubs,-valve cover bolts patterns were 4+1 for GT models while 5+1 for supercharger models,, oil catch tank relocated behind left front fenderwell,, larger capacity oil cooler,, T3/T4 turbocharger,, air intercooler