Whats the difference between Se, Sei, SeiW etc?
The main difference between Se & Sei is the rear suspension. The SE has a fixed rear axle from an Escort Mk2. These are a lighter arrangement than the Sei which is fine for track use but not so comfortable for road use. The Sei has independent rear suspension which is far more forgiving on the UK’s bumpy roads. The “W” means WIDE body. Earlier cars were available as Narrow or Wide hence the extra letter on older models. However, the narrow body is no longer available to buy so the “W” has been dropped as they are all now Wide cars.