2007 Cadillac STS vs. 1999 Mazda 121
To start off, 2007 Cadillac STS is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Mazda 121. In addition, the cost of maintenance, including insurance, on 1999 Mazda 121 would be higher. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 181 more horse power than 1999 Mazda 121. (74 HP @ 5200 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1999 Mazda 121.
Because 2007 Cadillac STS 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 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1999 Mazda 121, 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, 2007 Cadillac STS (342 Nm @ 3200 RPM) has 232 more torque (in Nm) than 1999 Mazda 121. (110 Nm @ 4000 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1999 Mazda 121. 2007 Cadillac STS has automatic transmission and 1999 Mazda 121 has manual transmission. 1999 Mazda 121 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 1999 Mazda 121 | |
| Make | Cadillac | Mazda |
| Model | STS | 121 |
| Year Released | 2007 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 1241 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 74 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 342 Nm | 110 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 94 mm | 71 mm |
| Engine Stroke Size | 86 mm | 83.6 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4990 mm | 3830 mm |
| Vehicle Width | 1850 mm | 1640 mm |
| Vehicle Height | 1470 mm | 1340 mm |
| Wheelbase Size | 2960 mm | 2460 mm |
