2008 Audi A8 vs. 1991 Ford Thunderbird
To start off, 2008 Audi A8 is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Ford Thunderbird. In addition, the cost of maintenance, including insurance, on 1991 Ford Thunderbird would be higher. At 4,942 cc (8 cylinders), 1991 Ford Thunderbird is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (231 HP @ 4000 RPM) has 34 more horse power than 1991 Ford Thunderbird. (197 HP @ 4000 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 1991 Ford Thunderbird. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 78 kg more than 1991 Ford Thunderbird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Ford Thunderbird. In wet, icy, snow, or gravel driving conditions, 2008 Audi A8 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, 2008 Audi A8 (450 Nm @ 1400 RPM) has 77 more torque (in Nm) than 1991 Ford Thunderbird. (373 Nm @ 3000 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Thunderbird.
Compare all specifications:
| 2008 Audi A8 | 1991 Ford Thunderbird | |
| Make | Audi | Ford |
| Model | A8 | Thunderbird |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 4942 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 231 HP | 197 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 450 Nm | 373 Nm |
| Torque RPM | 1400 RPM | 3000 RPM |
| Engine Bore Size | 83 mm | 101.6 mm |
| Engine Stroke Size | 91.4 mm | 76.2 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1830 kg | 1752 kg |
| Vehicle Length | 5060 mm | 5050 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1350 mm |
| Wheelbase Size | 2950 mm | 2880 mm |
| Fuel Tank Capacity | 90 L | 65 L |
