1950 Alvis TA 21 vs. 2006 Mercury Mariner
To start off, 2006 Mercury Mariner is newer by 56 year(s). Which means there will be less support and parts availability for 1950 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1950 Alvis TA 21 would be higher. At 2,991 cc (6 cylinders), 1950 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 2006 Mercury Mariner (153 HP @ 5800 RPM) has 60 more horse power than 1950 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 2006 Mercury Mariner should accelerate faster than 1950 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercury Mariner weights approximately 477 kg more than 1950 Alvis TA 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 1950 Alvis TA 21. In wet, icy, snow, or gravel driving conditions, 2006 Mercury Mariner will offer significantly more control. 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, 2006 Mercury Mariner (206 Nm @ 4250 RPM) has 2 more torque (in Nm) than 1950 Alvis TA 21. (204 Nm @ 2000 RPM). This means 2006 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1950 Alvis TA 21.
Compare all specifications:
| 1950 Alvis TA 21 | 2006 Mercury Mariner | |
| Make | Alvis | Mercury |
| Model | TA 21 | Mariner |
| Year Released | 1950 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2991 cc | 2262 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 153 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 204 Nm | 206 Nm |
| Torque RPM | 2000 RPM | 4250 RPM |
| Engine Bore Size | 84 mm | 87 mm |
| Engine Stroke Size | 90 mm | 94 mm |
| Engine Compression Ratio | 7.1:1 | 9.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1448 kg | 1925 kg |
| Vehicle Length | 4630 mm | 4450 mm |
| Vehicle Width | 1680 mm | 1790 mm |
| Vehicle Height | 1600 mm | 1780 mm |
| Wheelbase Size | 2840 mm | 2630 mm |
| Fuel Tank Capacity | 64 L | 62 L |
