In 1910 August Horch developed an improved Audi Type B. The Audi Type B 4 cylinder engine had 2612 cc displasment and produced 28 hp at 1800 rpm. The promotional test of the vehicle was in the Austrian Alps trip in 1911 where it was the winner.
1910 Audi Type B 10-28 PS is the only surviving copy of the Series 'B' these days and is owned by the August Horch Museum Zwickau.