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

Range Rover Evoque

2023 Land Rover

Range Rover Evoque

33,698 milesAutomaticPetrol1.5L

Cash £22,500
View Range Rover Evoque
Octavia Estate

2024 Skoda

Octavia Estate

50,100 milesManualPetrol1.5L

Cash £13,797
View Octavia Estate
Tucson

2020 Hyundai

Tucson

38,217 milesManualPetrol1.6L

Cash £13,497
View Tucson
Focus

2023 Ford

Focus

38,013 milesManualPetrol1.0L

Cash £13,697
View Focus

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

Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,644 off RRP*Used from £9,260
Hyundai Tucson

Hyundai Tucson

RRP £29,585Avg. savings £6,027 off RRP*Used from £12,795
Audi A3

Audi A3

RRP £26,295Avg. savings £2,713 off RRP*Used from £10,970
Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,245Avg. savings £2,053 off RRP*Used from £14,880
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Insurers still refuse to cover some Chinese cars despite booming sales
Skywell BE11 - front action

Insurers still refuse to cover some Chinese cars despite booming sales

Insurance companies seem to be struggling to keep pace with the wave of new cars coming from China, and buyers are literally paying the price
News
26 Feb 2026
Major Renault Megane revamp due this year with more range and racy looks
Renault Megane E-Tech Electric - rear static (night)

Major Renault Megane revamp due this year with more range and racy looks

All-new battery could push the more aggressive Megane EV past 300 miles of range
News
27 Feb 2026
EV drivers to save £15 per charge? Landmark VAT ruling could be huge
Vauxhall Astra Electric connected to roadside charger

EV drivers to save £15 per charge? Landmark VAT ruling could be huge

First-tier tribunal declares public charging should be subject to five per cent VAT, with huge potential savings for drivers
News
27 Feb 2026