Background
Before Jensen Motors started shoe-horning huge Chrysler V8 engines into their cars in the sixties and seventies with the C-V8, FF and Interceptor, they relied on 4.0-litre Austin D-series straight-six motors for their post-war cars. This included the 541 which was previewed at the London Motor Show in October 1953.
To deliver more power and driveability from what was originally a lorry engine, Jensen fed it with a triple-SU carburettor setup and paired it with a 4-speed manual transmission and an optional overdrive.
Power output was initially 135 bhp giving a top speed of 109 mph - although subsequent improvements raised both of these figures. In 1955, a leading UK car magazine achieved 0-60 mph in 10.8 seconds and reached almost 116 mph top speed in a 541 with the overdrive fitted.
The body was made of three large moulded sections of fibreglass - including a one-piece front clamshell - along with aluminium-skinned doors all sitting on a box-section steel chassis with 5-inch tubular outriggers. Jensen was one of the first to use fibreglass in car production - Chevrolet having launched their fibreglass-bodied Corvette earlier in 1953.
This method of construction had delivered a 250 kg weight saving over the Interceptor model (the original one) that was built alongside the 541 until 1957.
From 1956 a DeLuxe version was launched, becoming the first British-built four seater car with disc brakes all round. It also had more features included as standard such as leather seats.
During a six year production run, only 226 Jensen 541 cars were produced, but from 1957 and 1960 respectively, 193 541R and 127 541S variants delivered increases in power and speed as well as improvements in handling.
Oh, and why is it called a 541? Apparently because it was the first model of ‘54. As good a reason as any.







