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

X3

2024 BMW

X3

34,864 milesAutomaticDiesel2.0L

Cash £37,500
View X3
Macan

2026 Porsche

Macan

5,971 milesAutomaticPetrol2.0L

Cash £58,500
View Macan

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 £1,535 off RRP*Used from £18,790
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £2,785 off RRP*Used from £10,000
Volkswagen Golf

Volkswagen Golf

RRP £25,250Avg. savings £2,419 off RRP*Used from £8,995
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,394 off RRP*Used from £27,593
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

BMW X3 vs Honda CR-V vs VW Tayron vs MG HS vs Range Rover Sport: five top PHEVs head to head
Top five PHEVs head to head - header with team

BMW X3 vs Honda CR-V vs VW Tayron vs MG HS vs Range Rover Sport: five top PHEVs head to head

The five top plug-in hybrid systems go head-to-head on UK roads, in the test no PHEV buyer can do without
Car group tests
17 May 2026
New Jaecoo 3 has the Ford Puma and Renault 4 in its crosshairs
Jaecoo 3 - front (watermarked)

New Jaecoo 3 has the Ford Puma and Renault 4 in its crosshairs

Jaecoo is targeted the small SUV market with the new 3, and our exclusive images preview how it could look
News
18 May 2026
Ford’s fightback is on: five new EV and hybrid models for Europe by 2029
Ford future teaser

Ford’s fightback is on: five new EV and hybrid models for Europe by 2029

Ford’s fightback in Europe is coming, and it could see Fiesta and Focus return
News
18 May 2026