1991 Buick Riviera vs. 2003 Lancia Thesis
To start off, 2003 Lancia Thesis is newer by 12 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, 1991 Buick Riviera (170 HP @ 4800 RPM) has 22 more horse power than 2003 Lancia Thesis. (148 HP @ 4000 RPM). In normal driving conditions, 1991 Buick Riviera should accelerate faster than 2003 Lancia Thesis. With that said, vehicle weight also plays an important factor in acceleration. 2003 Lancia Thesis weights approximately 300 kg more than 1991 Buick Riviera.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, 2003 Lancia Thesis (309 Nm @ 2000 RPM) has 24 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2003 Lancia Thesis will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2003 Lancia Thesis | |
| Make | Buick | Lancia |
| Model | Riviera | Thesis |
| Year Released | 1991 | 2003 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 2387 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 148 HP |
| Engine RPM | 4800 RPM | 4000 RPM |
| Torque | 285 Nm | 309 Nm |
| Torque RPM | 3200 RPM | 2000 RPM |
| Engine Bore Size | 96.5 mm | 82 mm |
| Engine Stroke Size | 86.4 mm | 90.5 mm |
| Engine Compression Ratio | 8.5:1 | 18.1:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1520 kg | 1820 kg |
| Vehicle Length | 5040 mm | 4890 mm |
| Vehicle Width | 1830 mm | 1840 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2810 mm |
