Cadillac's flagship model, the STS saloon, is now available in the UK in right-hand drive for the first time, costing from 33,995.
The BMW 5 Series-rival is powered by 323bhp 4.6-litre V8 or 309bhp 3.6-litre V6 petrol engines. A six-speed semi-automatic gearbox is available as standard.
The V8 travels from 0-60mph in 6.2 secs and has a limited top speed of 155mph, while the V6 goes from 0-60mph in 6.9s and has a top speed of 149mph.
It is available in one trim level, Sport Luxury. Features include wood trim detailing, leather seats, electric seat adjustment, heated front seats and a heated steering wheel. A 15-speaker six-disc CD/DVD player is also fitted as standard.