2008 BMW Z4 vs. 1991 Ford Thunderbird
To start off, 2008 BMW Z4 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 3,791 cc (6 cylinders), 1991 Ford Thunderbird is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (215 HP @ 6250 RPM) has 77 more horse power than 1991 Ford Thunderbird. (138 HP @ 3800 RPM). In normal driving conditions, 2008 BMW Z4 should accelerate faster than 1991 Ford Thunderbird. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Thunderbird weights approximately 215 kg more than 2008 BMW Z4.
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, 1991 Ford Thunderbird (291 Nm @ 2400 RPM) has 40 more torque (in Nm) than 2008 BMW Z4. (251 Nm @ 2750 RPM). This means 1991 Ford Thunderbird will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2008 BMW Z4 | 1991 Ford Thunderbird | |
| Make | BMW | Ford |
| Model | Z4 | Thunderbird |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 138 HP |
| Engine RPM | 6250 RPM | 3800 RPM |
| Torque | 251 Nm | 291 Nm |
| Torque RPM | 2750 RPM | 2400 RPM |
| Engine Bore Size | 85.1 mm | 96.9 mm |
| Engine Stroke Size | 88.1 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1395 kg | 1610 kg |
| Vehicle Length | 4100 mm | 5050 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1300 mm | 1350 mm |
| Wheelbase Size | 2500 mm | 2880 mm |
| Fuel Tank Capacity | 55 L | 45 L |
