1951 Alvis TA 21 vs. 1984 Ford Sierra
To start off, 1984 Ford Sierra is newer by 33 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 1984 Ford Sierra (114 HP @ 5300 RPM) has 21 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1984 Ford Sierra should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 333 kg more than 1984 Ford Sierra.
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, 1951 Alvis TA 21 (204 Nm @ 2000 RPM) has 28 more torque (in Nm) than 1984 Ford Sierra. (176 Nm @ 3000 RPM). This means 1951 Alvis TA 21 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 1984 Ford Sierra has automatic transmission and 1951 Alvis TA 21 has manual transmission. 1951 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1984 Ford Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Alvis TA 21 | 1984 Ford Sierra | |
| Make | Alvis | Ford |
| Model | TA 21 | Sierra |
| Year Released | 1951 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2294 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 93 HP | 114 HP |
| Engine RPM | 4000 RPM | 5300 RPM |
| Torque | 204 Nm | 176 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 90 mm |
| Engine Stroke Size | 90 mm | 60.1 mm |
| Engine Compression Ratio | 7.1:1 | 9.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1448 kg | 1115 kg |
| Vehicle Length | 4630 mm | 4420 mm |
| Vehicle Width | 1680 mm | 1730 mm |
| Vehicle Height | 1600 mm | 1420 mm |
| Wheelbase Size | 2840 mm | 2610 mm |
| Fuel Tank Capacity | 64 L | 60 L |
