Skip advert
Advertisement

Cadillac STS 4.6 V8

After two failed attempts at grabbing a slice of the UK car market, Cadillac bosses have accepted that there is no future in trumpeting the past when developing new products for British car buyers.

Big and bold, Caddy's flagship for Europe is a muscular, but not muscle-bound, rival to the usual German exec suspects. The cabin lacks the class and finish of rivals, and the STS is more likely to be considered by new Lexus GS buyers. The V8 will be well equipped - although second-hand values could still prove to be a real deterrent.

Advertisement - Article continues below

After two failed attempts at grabbing a slice of the UK car market, Cadillac bosses have accepted that there is no future in trumpeting the past when developing new products for British car buyers.

Despite the badge's history, there is a perception that the US manufacturer is unable to produce a genuine BMW and Mercedes rival. But that has not put it off - which is why engineers have spent the past four years on a development mission, thrashing a prototype of the STS saloon across Europe.

Cadillac now believes it has a model capable of exorcising memories of unwieldy and poorly finished cars such as the front-wheel-drive Seville - and is ready to launch its flagship on this side of the Atlantic. Expectation is high - and Auto Express took to the wheel of the STS to see if it is justified.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Q8

2023 Audi

Q8

23,000 milesAutomaticDiesel3.0L

Cash £44,495
View Q8
Q3 Sportback

2023 Audi

Q3 Sportback

42,500 milesAutomaticPetrol1.5L

Cash £22,765
View Q3 Sportback
F-Pace

2023 Jaguar

F-Pace

58,898 milesAutomaticPetrol2.0L

Cash £25,995
View F-Pace
Q3 Sportback

2023 Audi

Q3 Sportback

36,136 milesAutomaticPetrol1.4L

Cash £26,955
View Q3 Sportback

The car is certainly substantial. Slab-sided in profile, the saloon is six inches longer than BMW's 5-Series, plus wider and lower. But Cadillac has worked hard to ditch the Yank tank image. Chrome trim - beloved in the US - is absent and the fussy and cluttered tail looks less messy in dark, solid colours.

Inside, the leather and wood dash blends well with the console "infotainment" unit and air-con buttons. However, fit and finish is not on a par with the Audi A6 or new Lexus GS. Details such as the over-sensitive electric steering wheel adjustment irritate, and the door pockets have a naff, rubbery finish.

The big Caddy bristles with hi-tech gizmos, from adaptive radar-controlled cruise control to a head-up instrument display. On the road, the technology is not intrusive, and the STS feels more compact than its bulk implies.

Powered by a 325bhp 4.6-litre V8, the rear-wheel-drive machine has a five-speed auto gearbox, as well as uprated steering, suspension and braking, which combine to make it surprisingly nimble.

Downsides include a lack of chassis feedback in sweeping corners, plus a tendency to fidget over uneven surfaces in sports mode. The V8's likely £42,500 price sounds a lot, but this car shows US engineers have listened, learned and applied important lessons.

Skip advert
Advertisement

More reviews

New & used car deals

Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,761 off RRP*Used from £17,995
Renault Clio

Renault Clio

RRP £16,175Avg. savings £3,740 off RRP*Used from £7,470
Volkswagen Golf

Volkswagen Golf

RRP £25,250Avg. savings £3,288 off RRP*Used from £10,495
Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £6,350 off RRP*Used from £10,450
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Volvo XC40 facelift: popular SUV gets Range Rover-esque makeover
Volvo XC40 - Ellis Hyde front

New Volvo XC40 facelift: popular SUV gets Range Rover-esque makeover

The pure-electric Volvo EX40 and EC40 coupe-SUV have also been updated again, now delivering up to 359 miles of range
News
10 Sep 2026
New Volkswagen ID. Polo 2026 review: a seriously impressive small EV
Volkswagen ID. Polo - front

New Volkswagen ID. Polo 2026 review: a seriously impressive small EV

The new all-electric Volkswagen ID. Polo is stylish, has plenty of space and is great to drive
Road tests
9 Sep 2026
New Dacia Spring revealed: small EV gets 50% price hike, but a big jump in quality
Dacia Spring 2026 - Jordan Katsianis

New Dacia Spring revealed: small EV gets 50% price hike, but a big jump in quality

The new Spring will be based on the adorable Renault Twingo and built here in Europe
News
8 Sep 2026