1989 Ford Sierra vs. 2007 Lexus RX
To start off, 2007 Lexus RX is newer by 18 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 3,456 cc (6 cylinders), 2007 Lexus RX is equipped with a bigger engine. In terms of performance, 2007 Lexus RX (272 HP @ 6200 RPM) has 147 more horse power than 1989 Ford Sierra. (125 HP @ 5600 RPM) In normal driving conditions, 2007 Lexus RX should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Lexus RX weights approximately 782 kg more than 1989 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Lexus RX is four wheel drive (4WD), it will have significant more traction and grip than 1989 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2007 Lexus RX will offer significantly more control. 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, 2007 Lexus RX (342 Nm @ 4700 RPM) has 168 more torque (in Nm) than 1989 Ford Sierra. (174 Nm @ 2500 RPM). This means 2007 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 2007 Lexus RX has automatic transmission and 1989 Ford Sierra has manual transmission. 1989 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Lexus RX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1989 Ford Sierra | 2007 Lexus RX | |
| Make | Ford | Lexus |
| Model | Sierra | RX |
| Year Released | 1989 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 3456 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 272 HP |
| Engine RPM | 5600 RPM | 6200 RPM |
| Torque | 174 Nm | 342 Nm |
| Torque RPM | 2500 RPM | 4700 RPM |
| Engine Compression Ratio | 10.3:1 | 10.8:1 |
| Top Speed | 195 km/hour | 195 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1128 kg | 1910 kg |
| Vehicle Length | 4430 mm | 4580 mm |
| Vehicle Width | 1700 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1680 mm |
| Wheelbase Size | 2530 mm | 2730 mm |
| Fuel Tank Capacity | 60 L | 75 L |
