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

F-Pace

2023 Jaguar

F-Pace

33,763 milesAutomaticDiesel2.0L

Cash £27,420
View F-Pace
CLA Shooting Brake

2020 Mercedes

CLA Shooting Brake

41,948 milesAutomaticPetrol2.0L

Cash £18,720
View CLA Shooting Brake
Range Rover Evoque

2021 Land Rover

Range Rover Evoque

48,104 milesAutomaticDiesel2.0L

Cash £20,900
View Range Rover Evoque
Countryman

2018 MINI

Countryman

50,271 milesAutomaticPetrol1.5L

Cash £14,900
View Countryman

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

Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £4,588 off RRP*
Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,245Avg. savings £2,532 off RRP*Used from £15,199
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £6,182 off RRP*Used from £12,397
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Jaguar GT: latest details on the groundbreaking 1,000bhp four-door EV
Jaguar GT - front (exclusive image)

New Jaguar GT: latest details on the groundbreaking 1,000bhp four-door EV

Jaguar’s four-door GT will have more power than a Bugatti Veyron, but it also weighs nearly a tonne more too!
News
9 Feb 2026
Long-term test: Nissan Qashqai e-Power Tekna+
Nissan Qashqai e-Power Tekna+ - header

Long-term test: Nissan Qashqai e-Power Tekna+

First report: popular family SUV makes a good first impression on our fleet
Long-term tests
10 Feb 2026
Smart motorways declared a “catastrophic waste of money”
Smart motorway refuge bay

Smart motorways declared a “catastrophic waste of money”

Only three of the 16 smart motorway projects undertaken by National Highways are on track to deliver good value for money
News
9 Feb 2026