High Quality Content by WIKIPEDIA articles! The Jensen 541R was a closed four-seater GT-class car built in the United Kingdom by Jensen between 1957 to 1960. The original aluminium prototype appeared in 1953 as the 541 at the London Motor Show, although this changed to glassfibre for all production cars. Within a year, the new 541 had already earned rave reviews from magazines, notably Autocar, whose testers drove the grand tourer to a top speed of over 125 mph (200 km/h). It was the fastest four-seater the magazine had ever tested at the time. The 541R employed a low-revving four-litre straight-six from the Austin Sheerline. The suspension system came from the Austin A70 with independent suspension by coil springs at the front and a live axle with half-elliptic springs at the rear. The 541R, introduced in 1957, differed from the 541 by using rack & pinion steering instead of a cam-and-roller system, and large disc brakes were used on all four wheels.