Triumph TR4

vs

Triumph TR7

UK vs UK β€” 1961 vs 1975

Triumph TR4 (1961)
Triumph TR7 (1975)
Specifications
TR4 StandardTR7 Drophead
Horsepower100 hp92 hp
Torque125 lb-ft112 lb-ft
Engine Size2,138 cc1,998 cc
0-60 mph10.9 sec9.1 sec
Top Speed109 mph109 mph
ΒΌ Mile17.6 sec17.0 sec
Weight2,121 lbs2,238 lbs
Wheelbase2,235 mm2,159 mm
Length3,962 mm4,064 mm
Units Produced40,253112,368
Original MSRP$2,849$7,000
Value (Excellent)$60,000$25,000
Collectibility7/104/10
Rarity4/103/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1961 Triumph TR4 Standard excels in lighter weight, greater rarity, stronger collectibility, while the 1975 Triumph TR7 Drophead stands out for quicker acceleration, better value. The best advice? Drive both if you can, then follow your instincts.

Overview

The 1961 Triumph TR4 Standard and 1975 Triumph TR7 Drophead share a manufacturer in Triumph, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Triumph brand. On paper, the two are remarkably close in power output, with the 1961 Triumph TR4 Standard producing 100 hp and the 1975 Triumph TR7 Drophead delivering 92 hp. Under the hood, the contrast is notable: the Triumph TR4 uses a Inline-4 OHV displacing 2,138 cc, while the Triumph TR7 relies on a Inline-4 OHC with 1,998 cc. In the sprint to 60 mph, the 1975 Triumph TR7 Drophead edges ahead at 9.1 seconds versus 10.9 seconds. On the collector market, the 1961 Triumph TR4 Standard commands a significant premium over the 1975 Triumph TR7 Drophead, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1961 Triumph TR4 Standard rates higher among enthusiasts and auction houses.