It went from square arch to roundarch for a year or so then back to squared off but rubber bumper but I'm not sure really. The roundarch ones weren't popular for a couple of reasons, mainly the insurance companies because just a simple hit in the rear creased/buckled the bodyshell across the shallow rear wheel arch and wrote the shell off. If you were really unlucky, the bump pushed the tank into the bumper and split it open too! We see a few making the pilgrimage to their ancestral home during the summer. It's funny how the classic MGB GT's STILL look ageless

How come its a left hooker in NZicon 5th Batt? Non standard motor/box with those larger dia wheels?