1987 Ford Sierra vs. 2007 BMW 645
To start off, 2007 BMW 645 is newer by 20 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW 645 (328 HP @ 6100 RPM) has 215 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 2007 BMW 645 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 725 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW 645 (450 Nm @ 3600 RPM) has 270 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
1987 Ford Sierra | 2007 BMW 645 | |
Make | Ford | BMW |
Model | Sierra | 645 |
Year Released | 1987 | 2007 |
Engine Position | Front | Front |
Engine Size | 2294 cc | 4398 cc |
Engine Cylinders | 4 cylinders | 8 cylinders |
Engine Type | in-line | V |
Horse Power | 113 HP | 328 HP |
Engine RPM | 5300 RPM | 6100 RPM |
Torque | 180 Nm | 450 Nm |
Torque RPM | 3000 RPM | 3600 RPM |
Engine Bore Size | 96 mm | 92 mm |
Engine Stroke Size | 79.5 mm | 82.7 mm |
Fuel Type | Gasoline | Gasoline - Premium |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 1090 kg | 1815 kg |
Vehicle Length | 4400 mm | 4830 mm |
Vehicle Width | 1680 mm | 1860 mm |
Vehicle Height | 1370 mm | 1380 mm |
Wheelbase Size | 2620 mm | 2790 mm |
Fuel Tank Capacity | 45 L | 70 L |