1991 BMW Z1 vs. 2006 Buick LaCrosse
To start off, 2006 Buick LaCrosse is newer by 15 year(s). Which means there will be less support and parts availability for 1991 BMW Z1. In addition, the cost of maintenance, including insurance, on 1991 BMW Z1 would be higher. At 3,786 cc (6 cylinders), 2006 Buick LaCrosse is equipped with a bigger engine. In terms of performance, 2006 Buick LaCrosse (200 HP) has 25 more horse power than 1991 BMW Z1. (175 HP) In normal driving conditions, 2006 Buick LaCrosse should accelerate faster than 1991 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2006 Buick LaCrosse weights approximately 700 kg more than 1991 BMW Z1. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 BMW Z1 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 BMW Z1. However, in wet, icy, snow, or gravel driving conditions, 2006 Buick LaCrosse, being front wheel drive (FWD), will offer much better control with better grip. 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 Buick LaCrosse (312 Nm @ 4000 RPM) has 82 more torque (in Nm) than 1991 BMW Z1. (230 Nm @ 4000 RPM). This means 2006 Buick LaCrosse will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW Z1.
Compare all specifications:
| 1991 BMW Z1 | 2006 Buick LaCrosse | |
| Make | BMW | Buick |
| Model | Z1 | LaCrosse |
| Year Released | 1991 | 2006 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 175 HP | 200 HP |
| Torque | 230 Nm | 312 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 97 mm |
| Engine Stroke Size | 78.8 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1950 kg |
| Vehicle Length | 3960 mm | 5040 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1280 mm | 1460 mm |
| Wheelbase Size | 2450 mm | 2810 mm |
