UK vs UK — 1966 vs 1959
| GT6 Mk III | Herald 13/60 Convertible | |
|---|---|---|
| Horsepower | 104 hp | 61 hp |
| Torque | 116 lb-ft | 74 lb-ft |
| Engine Size | 1,998 cc | 1,296 cc |
| 0-60 mph | 10.1 sec | 17.0 sec |
| Top Speed | 114 mph | 85 mph |
| ¼ Mile | 17.2 sec | 21.0 sec |
| Weight | 1,949 lbs | 1,848 lbs |
| Wheelbase | 2,108 mm | 2,311 mm |
| Length | 3,784 mm | 3,886 mm |
| Units Produced | 40,926 | 232,000 |
| Original MSRP | $3,100 | $1,900 |
| Value (Excellent) | $40,000 | $20,000 |
| Collectibility | 6/10 | 4/10 |
| Rarity | 6/10 | 4/10 |
The 1966 Triumph GT6 Mk III holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1959 Triumph Herald 13/60 Convertible brings lighter weight, better value and remains a compelling choice for enthusiasts who value Triumph heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1966 Triumph GT6 Mk III and 1959 Triumph Herald 13/60 Convertible 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. The 1966 Triumph GT6 Mk III holds a clear advantage in raw power with 104 hp compared to 61 hp, a 43-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Triumph GT6 uses a Inline-6 OHV displacing 1,998 cc, while the Triumph Herald relies on a Inline-4 OHV with 1,296 cc. In the sprint to 60 mph, the 1966 Triumph GT6 Mk III edges ahead at 10.1 seconds versus 17.0 seconds. Rarity plays a significant role here — with only 40,926 units built, the 1966 Triumph GT6 Mk III is considerably scarcer than the Triumph Herald's 232,000 examples. From a collectibility standpoint, the 1966 Triumph GT6 Mk III rates higher among enthusiasts and auction houses.