Teenage boy's novel about rallying

[dave stew]

When I was a young lad in the late 70s I read a novel which was all about rallying. The hero was driving a group 1 Dolomite Sprint (there was a line drawing on the cover) and when the baddies caught up with him the driver and co driver were buried alive in said 16 valve Triumph.

Does anyone have a clue what it was? I'd like to get a copy for my son to read.

[951TSE]

This book dealer:

http://winktimber.com/vintagerally/books/rallybook...

Has a synopsis of this book:

http://winktimber.com/vintagerally/books/bk_rallyt...

Which talks about the young rally driver being buried alive. Second from the bottom of the page.