The Lotus Carlton (also called Vauxhall Lotus Carlton, Lotus Omega and Opel Lotus Omega) is a Vauxhall Carlton/Opel Omega A saloon upgraded by Lotus in order to be able to reach speeds up to 285 km/h (177 mph) with acceleration to equal contemporary sports cars. Like all Lotus vehicles, it was given a type designation—Type 104 in this case. The exterior changes were minimal with the addition of a rear spoiler, cooling vents on the bonnet, Lotus badges on the front wings and bootlid, a bodykit and considerably wider wheel arches distinguishing it from a standard Carlton/Omega. The car was only sold in one colour, a shade of green called Imperial Green (similar to British Racing Green).