The rivalry between USA and Germany automotive industries has produced legendary matchups, and the 1930 Auburn Speedster 851/852 Supercharged versus 1928 Mercedes-Benz SSK Count Trossi Special is among the most fascinating. These two cars represent the best of their national engineering schools. The 1928 Mercedes-Benz SSK Count Trossi Special holds a clear advantage in raw power with 300 hp compared to 150 hp, a 150-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Auburn Speedster uses a Inline-8 L-head Supercharged displacing 4,586 cc, while the Mercedes-Benz SSK relies on a Inline-6 SOHC Supercharged with 7,065 cc. The 1928 Mercedes-Benz SSK Count Trossi Special claims a higher top speed at 146 mph compared to 100 mph. Rarity plays a significant role here — with only 33 units built, the 1928 Mercedes-Benz SSK Count Trossi Special is considerably scarcer than the Auburn Speedster's 500 examples. On the collector market, the 1928 Mercedes-Benz SSK Count Trossi Special commands a significant premium over the 1930 Auburn Speedster 851/852 Supercharged, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1928 Mercedes-Benz SSK Count Trossi Special rates higher among enthusiasts and auction houses.