in time for 1951. From the start, the Minor had semaphore-type turn indicators, and subsequent Minor versions persisted with these until 1961. An Autocar magazine road test in 1950 reported that these were "not of the usual self-cancelling type, but incorporate[d] a time-basis return mechanism in a switch below the facia, in front of the driver". It was all too easy for a passenger hurriedly emerging from the front passenger seat to collide with and snap off a tardy indicator "flipper" that was still sticking out of the B-pillar, having not yet been safely returned by the time-basis return mechanism to its folded position. Another innovation towards the end of 1950 was a water pump (replacing a gravity dependent system), which permitted the manufacturer to offer an interior heater "as optional equipment". When production of the first series ended, just over a quarter of a million had been sold, 30% of them the convertible Tourer model. A 918 cc-engined tourer tested by the British magazine The Motor in 1950 had a top speed of and could accelerate from 0– in 29.2 seconds. However, the 918 cc engine did 0–60 mph in 50+ seconds. A fuel consumption of was recorded. The test car cost £382 including taxes. Minor Series II In 1952, the Minor was substantially re-engineered following the merger of the Nuffield Organization (Morris's parent company) with the Austin Motor Company to form the British Motor Corporation. As part of a rationalisation programme to reduce the production of duplicate components for similar vehicles, the Minor drivetrain was completely replaced with an Austin-derived engine, gearbox, propshaft, differential and axle casing. The more modern Austin-designed overhead valve A-series engine, which had been designed for the Minor's main rival, the Austin A30, was smaller in all dimensions, but nevertheless gave noticeable performance improvements over the pre-war side-valve Morris unit it replaced. The 52 second drive to was still calm, but top speed increased to . Fuel consumption also rose to . An estate version was introduced in 1952, known as the Traveller (a Morris naming tradition for estates, also seen on the Mini). The Traveller featured an external structural ash (wood) frame for the rear bodywork, with two side-hinged rear doors. The frame was varnished rather than painted and a highly visible feature of the body style. Travellers were built alongside the saloon model at Cowley minus their rear bodies. The half-completed cars