1965 AC 427 vs. 1947 Triumph Roadster
To start off, 1965 AC 427 is newer by 18 year(s). Which means there will be less support and parts availability for 1947 Triumph Roadster. In addition, the cost of maintenance, including insurance, on 1947 Triumph Roadster would be higher. At 6,997 cc (8 cylinders), 1965 AC 427 is equipped with a bigger engine. In terms of performance, 1965 AC 427 (410 HP @ 4000 RPM) has 348 more horse power than 1947 Triumph Roadster. (62 HP @ 4500 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 1947 Triumph Roadster. With that said, vehicle weight also plays an important factor in acceleration. 1965 AC 427 weights approximately 247 kg more than 1947 Triumph Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1965 AC 427 (652 Nm @ 3700 RPM) has 527 more torque (in Nm) than 1947 Triumph Roadster. (125 Nm @ 2000 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 1947 Triumph Roadster. 1965 AC 427 has automatic transmission and 1947 Triumph Roadster has manual transmission. 1947 Triumph Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1965 AC 427 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1965 AC 427 | 1947 Triumph Roadster | |
| Make | AC | Triumph |
| Model | 427 | Roadster |
| Year Released | 1965 | 1947 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 1776 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 410 HP | 62 HP |
| Engine RPM | 4000 RPM | 4500 RPM |
| Torque | 652 Nm | 125 Nm |
| Torque RPM | 3700 RPM | 2000 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1397 kg | 1150 kg |
| Vehicle Length | 4430 mm | 4290 mm |
| Vehicle Width | 1710 mm | 1630 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2440 mm | 2550 mm |
