Skip advert
Advertisement

Lexus GS450h

Cutting-edge hybrid technology promises more than it delivers

While Infiniti is just beginning to establish itself in the UK, Lexus has been a feature of the automotive landscape here for 20 years. The GS name dates from 1993, and thanks to conservative styling – which has changed little since the second-generation executive model was launched in 1997 – the car is a familiar sight. 

Advertisement - Article continues below

The GS 450h was the world’s first rear-wheel-drive hybrid sports saloon, but its styling  doesn’t reflect the futuristic technology lurking beneath the skin. While it’s less fussy than the Infiniti, the GS appears dated and uninspiring – a criticism that can also be levelled at the cabin.

The dashboard, in particular, looks old-fashioned. As with its rival here, the build quality is faultless, while the big buttons on the centre console and touchscreen monitor are easy to use. However, aside from the crystal blue backlit dials, it’s not very special from behind the wheel. The compromised driving position only adds to this feeling – you can’t adjust the seat low enough and rake adjustment on the wheel is at an acute angle.

Rear legroom is tighter than in the Infiniti, and the fact the batteries are stored behind the rear bench results in a short boot that is 120 litres smaller than its rival’s. The challenge of packaging the hybrid drivetrain also means the fuel tank is 15 litres smaller.  

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Tarraco

2024 SEAT

Tarraco

10,420 milesAutomaticPetrol1.5L

Cash £24,449
View Tarraco
T-Roc

2025 Volkswagen

T-Roc

5,639 milesAutomaticPetrol1.5L

Cash £23,249
View T-Roc
Juke

2023 Nissan

Juke

22,172 milesManualPetrol1.0L

Cash £12,399
View Juke
Juke

2023 Nissan

Juke

4,967 milesAutomaticPetrol1.0L

Cash £14,999
View Juke

Under the bonnet, the 292bhp 3.5-litre V6 petrol engine is boosted by an electric motor to give a total output of 341bhp. Consequently, at the test track, the Lexus sprinted from 0-60mph in exactly six seconds – that’s two seconds faster than the Infiniti – and was quicker to respond in kickdown. However, under hard acceleration, the CVT transmission keeps the revs high for long periods, which contrasts with the Infiniti diesel’s torquey refinement.

Around town, you get the benefit of silent zero-emissions  driving, but anything other than very light throttle inputs will see the petrol engine cut back in. At cruising speeds, refinement is decent, although the suspension fails to iron out imperfections,and the ride is fidgety on all but the smoothest of surfaces.

The GS struggles in corners, too. Body control is poor and the slow steering is completely devoid of feedback. And as the brake pedal has an artificial feel, it’s hard to scrub off speed progressively, as the regenerative braking set-up is uneven in its resistance. Add these dynamic compromises to the lower kit tally, higher price and inferior economy, and the GS clearly has its work cut out to beat the Infiniti.

Details

Chart position: 2
WHY: With its petrol-electric drivetrain and CVT gearbox, the GS 450h is unique in this sector. We see if the SE-L version can attract buyers looking away from German marques.

Skip advert
Advertisement

New & used car deals

Audi A3

Audi A3

RRP £26,310Avg. savings £2,531 off RRP*Used from £9,995
Nissan Juke

Nissan Juke

RRP £19,805Avg. savings £4,597 off RRP*Used from £7,595
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £5,624 off RRP*Used from £11,999
Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,532 off RRP*Used from £17,990
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Jeep Renegade to target Dacia Duster with cheap 'n' tough design
Jeep Renegade exclusive image

New Jeep Renegade to target Dacia Duster with cheap 'n' tough design

Keen to offer a spacious and rugged offering at an attractive price, the new Renegade will have established rivals looking over their shoulders
News
16 Jul 2026
New Volkswagen ID. Cross: 278-mile electric SUV is gunning for Renault 4
Phil McNamara with the Volkswagen ID. Cross

New Volkswagen ID. Cross: 278-mile electric SUV is gunning for Renault 4

The new all-electric Volkswagen ID. Cross is here to take on the small SUV elite, and it's set to cost from £28k
News
16 Jul 2026
Huge EV pay-per-mile tax details revealed: GPS tracking and price increases confirmed
HM Treasury sign

Huge EV pay-per-mile tax details revealed: GPS tracking and price increases confirmed

In its response to the consultation on eVED, the Government says its plans will “support a fair and sustainable motoring tax system”
News
15 Jul 2026