1981 Bitter SC vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Bitter SC. In addition, the cost of maintenance, including insurance, on 1981 Bitter SC would be higher. At 2,969 cc (6 cylinders), 1981 Bitter SC is equipped with a bigger engine. In terms of performance, 1981 Bitter SC (180 HP @ 5800 RPM) has 12 more horse power than 2005 BMW Z4. (168 HP @ 6250 RPM). In normal driving conditions, 1981 Bitter SC should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1981 Bitter SC weights approximately 25 kg more than 2005 BMW Z4. 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, 1981 Bitter SC (248 Nm @ 4200 RPM) has 38 more torque (in Nm) than 2005 BMW Z4. (210 Nm @ 3500 RPM). This means 1981 Bitter SC will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 1981 Bitter SC | 2005 BMW Z4 | |
| Make | Bitter | BMW |
| Model | SC | Z4 |
| Year Released | 1981 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2969 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 180 HP | 168 HP |
| Engine RPM | 5800 RPM | 6250 RPM |
| Torque | 248 Nm | 210 Nm |
| Torque RPM | 4200 RPM | 3500 RPM |
| Engine Bore Size | 95.1 mm | 80 mm |
| Engine Stroke Size | 69.8 mm | 72 mm |
| Engine Compression Ratio | 9.4:1 | 10.8:1 |
| Acceleration 0-100mph | 10.1 seconds | 7.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1350 kg | 1325 kg |
| Vehicle Length | 4920 mm | 4100 mm |
| Vehicle Width | 1830 mm | 1790 mm |
| Vehicle Height | 1360 mm | 1310 mm |
| Wheelbase Size | 2690 mm | 2500 mm |
| Fuel Tank Capacity | 75 L | 55 L |
