 This project went sour when the designers proposed a flat 12 four-cam engine with the possibility of supercharging and even four-wheel drive plus Eberhorst’s usual requirements for proper jigs, test-beds and tooling; his view was that races are better lost on the test-beds then they can be won on the tracks.Eberhorst was by now recognised as one of the world's premier racing car design theorists, so in 1949 he moved to Dunstable, where he worked for ERA on the Jowett Jupiter chassis, and then in 1950 to Aston Martin to design a pure sports-racing car, the DB3, his brief being to produce a car that would be quick enough to give the 2.6-litre straight six a chance of outright wins.Whilst at Aston Martin Eberhorst published an article in the Automobile Engineer entitled “Roll Angles”.