Launched in 1990, the Opel Lotus Omega became the fastest production sedan in the world thanks to its powerful engine derived from the Omega’s 3.0-liter straight-six used in the hotter GSi model. Lotus worked its magic by bumping displacement to 3.6 liters adding a pair of Garrett T25 turbochargers and a new intercooler system while other hardware changes were made to cope with the extra oomph and thus maintain reliability.

Hooked up to the same six-speed ZF manual gearbox as the Chevy Corvette ZR1 of those days, the reworked engine managed to produce a healthy 377 horsepower and 419 pound-feet (568 Newton-meters) of torque delivered to the rear wheels.

It allowed the Opel Lotus Omega to hit 62 mph (100 kph) in just 5.4 seconds before maxing out at 177 mph (285 kph).