18/50, 20/55, 21/60 The first Aster cars were made in 1922 with the luxurious
18/50, which had a 2618 cc six cylinder overhead valve engine driving the rear wheels through a four speed gearbox. The 126 inch wheelbase chassis had semi elliptic springing at the front and cantilevered springs at the rear with four wheel brakes as an early option. The car was listed at £850 in 1923 and about 50 were made before in 1924 the engine was enlarged to 2890 cc by increasing its bore from 69.5 to 73 mm in the
20/55 model. One was bought by the Duke of York. About another 50 of the larger cars were made. In 1926 the engine was further bored out to 75 mm, the stroke stayed at 115 mm throughout, making the 3042 cc
21/60.
24/70 The largest car they made was the 1927
24/70 with a 147-inch wheelbase, a foot longer than the 21/60. The 3042 cc engine for this was created by boring the engine a further 5 mm to 80 mm and fitting
Burt-McCollum single
sleeve valves which were also fitted to the 21/60 engine from that year. The top of the range 39 cwt Landaulette cost £1300. Probably about 70 were made. ==Merger==