2008 Buick LaCrosse vs. 2005 BMW 645
To start off, 2008 Buick LaCrosse is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP) has 126 more horse power than 2008 Buick LaCrosse. (200 HP) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2008 Buick LaCrosse. With that said, vehicle weight also plays an important factor in acceleration. 2008 Buick LaCrosse weights approximately 51 kg more than 2005 BMW 645.
Because 2005 BMW 645 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 2005 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 135 more torque (in Nm) than 2008 Buick LaCrosse. (312 Nm @ 4000 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Buick LaCrosse.
Compare all specifications:
| 2008 Buick LaCrosse | 2005 BMW 645 | |
| Make | Buick | BMW |
| Model | LaCrosse | 645 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3801 cc | 4392 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 200 HP | 326 HP |
| Torque | 312 Nm | 447 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1946 kg | 1895 kg |
| Vehicle Length | 5040 mm | 4830 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 2810 mm | 2890 mm |
| Fuel Consumption | 7.8 L/100km | 10.2 L/100km |
| Fuel Consumption City | 11.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 10.2 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
