The Lamborghini, which on all cars it powered carried the words "Chrysler powered by Lamborghini" (other than the McLaren MP4/8B which was all virgin white, though the test engines were badged as Chrysler), was one of only five V12 engines used in the naturally aspirated era from 1989–2013, the others being from Ferrari (1989-1995), Honda (1991-1992), Yamaha (1991-1992), and Porsche (1991). The only other 12 cylinder engines in Formula One during this time were disastrous efforts by Life Racing Engines with their W12 engine and Subaru who reintroduced the Flat 12 to the sport, both appearing in the first half of 1990.
