For those who asked about seatbelts, I've dug out a pic regarding the seatbelt mountings, it should be below.
There's also one about windscreen height.

Please note, these are quite old and may be altered in newer SVA. If anyone has any details of change then please post.
Sorry it's so large, details are lost when reduced.

[Edited on 3/9/03 by Rob Lane]
Rescued attachment beltmount.jpg

Missed windscreen pic.
Rescued attachment SVAwind.jpg