1971 AC 428 vs. 2006 Kia Optima
To start off, 2006 Kia Optima is newer by 35 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP @ 4600 RPM) has 128 more horse power than 2006 Kia Optima. (170 HP @ 6000 RPM). In normal driving conditions, 1971 AC 428 should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2006 Kia Optima weights approximately 58 kg more than 1971 AC 428.
Because 1971 AC 428 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 1971 AC 428. However, in wet, icy, snow, or gravel driving conditions, 2006 Kia Optima, 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 394 more torque (in Nm) than 2006 Kia Optima. (245 Nm @ 4000 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 1971 AC 428 | 2006 Kia Optima | |
| Make | AC | Kia |
| Model | 428 | Optima |
| Year Released | 1971 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2671 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 170 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 639 Nm | 245 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1488 kg |
| Vehicle Length | 4430 mm | 4730 mm |
| Vehicle Width | 1710 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1420 mm |
| Wheelbase Size | 2450 mm | 2710 mm |
