A right-hand-drive Cadillac STS line, built alongside the CTS, CTS-V and SRX models at General Motors' Lansing Grand River assembly centre in Michigan, has gone on sale here in the UK priced from GBP33,995 ($US67,600) with a single 'Sport Luxury' trim level and a choice of 330ps Northstar V8 or 315ps V6 petrol engines.