 ALFA 20/30 HP

ALFA or later Alfa Romeo has made three cars named as 20/30 HP, first one 1910 4-cylinder 4-6-seater tourer, improved version 20/30 HP E in 1914 and 1921 the 20/30 HP ES Sport, a 4-seater sportscar.The ALFA 20/30 HP was almost identical to the 24 HP of 1910 and could be called HP 24 Series E. The engine was same as used in 24 HP but now the camshaft had a side chain, to reduce noise.