Adler Diplomat

vs

Mercer Series 5 Raceabout

Germany vs USA — 1934 vs 1922

Adler Diplomat (1934)
Mercer Series 5 Raceabout (1922)
Specifications
DiplomatSeries 5 Raceabout
Engine Size2,916 cc4,882 cc
Collectibility5/105/10
Rarity5/105/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1934 Adler Diplomat excels in its unique character, while the 1922 Mercer Series 5 Raceabout stands out for its own distinct appeal. The best advice? Drive both if you can, then follow your instincts.

Overview

Putting the 1934 Adler Diplomat against the 1922 Mercer Series 5 Raceabout is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Germany versus USA. Both cars represent compelling choices in their respective segments. Whether you prioritize driving dynamics, heritage, or aesthetic appeal, both contenders make a strong case for themselves.