Alfa Romeo RL

vs

Mercedes-Benz SSK

Italy vs Germany — 1922 vs 1928

Alfa Romeo RL (1922)
Mercedes-Benz SSK (1928)
Specifications
RL Super SportSSK Count Trossi Special
Horsepower83 hp300 hp
Engine Size2,994 cc7,065 cc
Top Speed81 mph146 mph
Weight2,646 lbs3,748 lbs
Wheelbase3,050 mm2,950 mm
Length4,250 mm
Units Produced39233
Value (Excellent)$2,000,000$30,000,000
Collectibility9/1010/10
Rarity9/1010/10
The Verdict

The 1928 Mercedes-Benz SSK Count Trossi Special emerges ahead in most objective measures, offering more power, higher top speed, greater rarity. The 1922 Alfa Romeo RL Super Sport counters with lighter weight, better value, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.

Overview

Putting the 1922 Alfa Romeo RL Super Sport against the 1928 Mercedes-Benz SSK Count Trossi Special is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Italy versus Germany. The 1928 Mercedes-Benz SSK Count Trossi Special holds a clear advantage in raw power with 300 hp compared to 83 hp, a 217-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Alfa Romeo RL uses a Inline-6 OHV displacing 2,994 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 81 mph. The Alfa Romeo RL carries a weight advantage, tipping the scales 1102 lbs lighter. Rarity plays a significant role here — with only 33 units built, the 1928 Mercedes-Benz SSK Count Trossi Special is considerably scarcer than the Alfa Romeo RL's 392 examples. On the collector market, the 1928 Mercedes-Benz SSK Count Trossi Special commands a significant premium over the 1922 Alfa Romeo RL Super Sport, reflecting differences in prestige and rarity.