I've never seen the films, but if this ride is in any way indicative of the freak fest that IS a "Saw" film, then I'll kindly say "thanks, but no thanks."
Watch this video if you dare. Seriously, it's plain out freaky. But I like the guy in the blue windbreaker.
Thorpe Park opened in 1979, built on a former quarry. Not vintage, and certainly not in the States, but I just had to post the link for the coaster...