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

Range Rover Sport

2027 Land Rover

Range Rover Sport

24,018 milesAutomaticDiesel3.0L

Cash £65,650
View Range Rover Sport
A5 Sportback

2024 Audi

A5 Sportback

17,470 milesAutomaticPetrol2.0L

Cash £25,676
View A5 Sportback
Cooper Electric

2023 MINI

Cooper Electric

25,000 milesAutomaticElectric

Cash £12,500
View Cooper Electric
EQC

2023 Mercedes

EQC

112,000 milesAutomaticElectric

Cash £16,750
View EQC

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 £15,700
Volkswagen Polo

Volkswagen Polo

RRP £8,495Avg. savings £2,298 off RRP*Used from £6,165
Kia Sportage

Kia Sportage

RRP £12,250Avg. savings £3,639 off RRP*Used from £11,450
MG MG4

MG MG4

RRP £19,200Avg. savings £4,250 off RRP*Used from £10,815
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Land Rover Discovery: bold reinvention due for British favourite as JLR House of Brands takes shape
Land Rover Discovery badge

New Land Rover Discovery: bold reinvention due for British favourite as JLR House of Brands takes shape

A new Land Rover Discovery is coming and it looks set to take a form unlike anything we’ve seen before from the firm
News
26 Oct 2026
New Citroen 2CV: all the info on the £13k retro EV
Citroen 2CV concept - Paris front

New Citroen 2CV: all the info on the £13k retro EV

The long-awaited 2CV reboot is finally here, and the retro-futuristic concept spearheading the revival is said to have gone down a treat
News
26 Oct 2026
Tough new Chery Tiggo X7: specs, prices and latest details
New Chery Tiggo X7 - front angled

Tough new Chery Tiggo X7: specs, prices and latest details

The aggressive new member of the Tiggo family has broken cover, but technical details and UK launch plans remain unconfirmed
News
27 Oct 2026