1991 Buick LeSabre vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 21 year(s). Which means there will be less support and parts availability for 1991 Buick LeSabre. In addition, the cost of maintenance, including insurance, on 1991 Buick LeSabre would be higher. At 3,791 cc (6 cylinders), 1991 Buick LeSabre is equipped with a bigger engine. In terms of performance, 2012 BMW 640 (311 HP @ 4400 RPM) has 143 more horse power than 1991 Buick LeSabre. (168 HP @ 4800 RPM) In normal driving conditions, 2012 BMW 640 should accelerate faster than 1991 Buick LeSabre. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 640 weights approximately 385 kg more than 1991 Buick LeSabre. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW 640 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 2012 BMW 640. However, in wet, icy, snow, or gravel driving conditions, 1991 Buick LeSabre, 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 331 more torque (in Nm) than 1991 Buick LeSabre. (299 Nm @ 3200 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick LeSabre.
Compare all specifications:
| 1991 Buick LeSabre | 2012 BMW 640 | |
| Make | Buick | BMW |
| Model | LeSabre | 640 |
| Year Released | 1991 | 2012 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 311 HP |
| Engine RPM | 4800 RPM | 4400 RPM |
| Torque | 299 Nm | 630 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Bore Size | 96.5 mm | 90 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1550 kg | 1935 kg |
| Vehicle Length | 5090 mm | 4894 mm |
| Vehicle Width | 1910 mm | 1894 mm |
| Vehicle Height | 1420 mm | 1365 mm |
| Wheelbase Size | 2820 mm | 2855 mm |
| Fuel Tank Capacity | 62 L | 70 L |
