1973 AC 428 vs. 2011 Lexus IS
To start off, 2011 Lexus IS is newer by 38 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 94 more horse power than 2011 Lexus IS. (204 HP @ 6400 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 2011 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2011 Lexus IS weights approximately 137 kg more than 1973 AC 428.
Because 2011 Lexus IS is all wheel drive (AWD), it will have significant more traction and grip than 1973 AC 428. In wet, icy, snow, or gravel driving conditions, 2011 Lexus IS 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, 1973 AC 428 (639 Nm @ 2800 RPM) has 388 more torque (in Nm) than 2011 Lexus IS. (251 Nm @ 4800 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2011 Lexus IS. 2011 Lexus IS has automatic transmission and 1973 AC 428 has manual transmission. 1973 AC 428 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Lexus IS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 AC 428 | 2011 Lexus IS | |
| Make | AC | Lexus |
| Model | 428 | IS |
| Year Released | 1973 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 2500 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 204 HP |
| Engine RPM | 4600 RPM | 6400 RPM |
| Torque | 639 Nm | 251 Nm |
| Torque RPM | 2800 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1567 kg |
| Vehicle Length | 4430 mm | 4585 mm |
| Vehicle Width | 1710 mm | 1801 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2450 mm | 2731 mm |
