The 3500 was introduced in April 1968 (one year after the Rover company was purchased by Triumph's owner, Leyland) and continued to be offered until 1977. The manufacturer asserted that the light metal V8 engine weighed the same as the four-cylinder unit of the Rover 2000, and the more powerful car's maximum speed of 114 mph (183 km/h) as well as its 10.5-second acceleration time from 0–60 mph (97 km/h) were considered impressive, and usefully faster than most of the cars with which, on the UK market, the car competed on price and specifications. (The glaring exception was the Jaguar 340, which was substantially quicker than the Rover 3500 and was advertised at a 15 per cent lower manufacturer's recommended price, the Jaguar representing exceptional value as a "run-out" model, to be replaced later in 1968 by the Jaguar XJ6.)