2002 BMW Z4 vs. 1991 Buick Riviera
To start off, 2002 BMW Z4 is newer by 11 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (190 HP @ 6000 RPM) has 20 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Riviera weights approximately 125 kg more than 2002 BMW Z4.
Because 2002 BMW Z4 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 2002 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1991 Buick Riviera, 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, 1991 Buick Riviera (285 Nm @ 3200 RPM) has 40 more torque (in Nm) than 2002 BMW Z4. (245 Nm @ 3500 RPM). This means 1991 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2002 BMW Z4. 1991 Buick Riviera has automatic transmission and 2002 BMW Z4 has manual transmission. 2002 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
2002 BMW Z4 | 1991 Buick Riviera | |
Make | BMW | Buick |
Model | Z4 | Riviera |
Year Released | 2002 | 1991 |
Body Type | Convertible | Coupe |
Engine Position | Front | Front |
Engine Size | 2494 cc | 3800 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | V |
Horse Power | 190 HP | 170 HP |
Engine RPM | 6000 RPM | 4800 RPM |
Torque | 245 Nm | 285 Nm |
Torque RPM | 3500 RPM | 3200 RPM |
Engine Bore Size | 84 mm | 96.5 mm |
Engine Stroke Size | 75 mm | 86.4 mm |
Engine Compression Ratio | 10.5:1 | 8.5:1 |
Drive Type | Rear | Front |
Transmission Type | Manual | Automatic |
Number of Seats | 2 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1395 kg | 1520 kg |
Vehicle Length | 4100 mm | 5040 mm |
Vehicle Width | 1790 mm | 1830 mm |
Vehicle Height | 1310 mm | 1350 mm |
Wheelbase Size | 2580 mm | 2760 mm |