1965 AC 427 vs. 2004 Alfa Romeo 156
To start off, 2004 Alfa Romeo 156 is newer by 39 year(s). Which means there will be less support and parts availability for 1965 AC 427. In addition, the cost of maintenance, including insurance, on 1965 AC 427 would be higher. At 6,997 cc (8 cylinders), 1965 AC 427 is equipped with a bigger engine. In terms of performance, 1965 AC 427 (410 HP @ 4000 RPM) has 262 more horse power than 2004 Alfa Romeo 156. (148 HP @ 4000 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 128 kg more than 1965 AC 427.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 1965 AC 427. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 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, 1965 AC 427 (652 Nm @ 3700 RPM) has 352 more torque (in Nm) than 2004 Alfa Romeo 156. (300 Nm @ 2000 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156. 1965 AC 427 has automatic transmission and 2004 Alfa Romeo 156 has manual transmission. 2004 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1965 AC 427 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1965 AC 427 | 2004 Alfa Romeo 156 | |
| Make | AC | Alfa Romeo |
| Model | 427 | 156 |
| Year Released | 1965 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 1910 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 410 HP | 148 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 652 Nm | 300 Nm |
| Torque RPM | 3700 RPM | 2000 RPM |
| Engine Bore Size | 107.7 mm | 82 mm |
| Engine Stroke Size | 96 mm | 90.4 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1397 kg | 1525 kg |
| Vehicle Width | 1710 mm | 1750 mm |
| Vehicle Height | 1300 mm | 1460 mm |
| Wheelbase Size | 2440 mm | 2600 mm |
| Fuel Tank Capacity | 81 L | 63 L |
