Lexus GS300h, test drive (Engine, performance, handling and fuel consumption)

We already know the Lexus GS from our road test section: it is a saloon in every sense and a genuine alternative to the typical premium saloons in its segment. Years ago we tested the GS with the 345 CV hybrid engine, but the range needed a calmer variant for those who do not want such a large powertrain, which also lowers the starting price of the Lexus GS.

Precisely for all of the above, Lexus has launched the GS300h, which shares its engine with its mid-size saloon and delivers 223 CV, more than enough to move the car with ease. For €45,900, you get a Lexus GS300h with 223 CV and a very complete specification, which is without doubt its best asset. Keep reading this test and we will tell you everything about this saloon, which is a very real alternative to the rest of the premium saloons (which are more expensive and less well equipped).

Engine and performance

The GS300h’s powertrain is a hybrid that combines a 2.5-litre four-cylinder petrol engine producing 180 CV with an electric motor (143 CV), which together add up to 223 CV. Although it is not a hybrid based on a V6 like the GS450h, it remains a very refined engine.

Are 223 CV enough to move the Lexus GS? Yes, without a doubt. With the 345 CV engine in normal mode you would not make use of so many horses, and only in Sport mode do you really notice the full potential of that powertrain. This 223 CV variant is therefore perfect for those seeking a calm saloon that responds when you press the accelerator (especially as the revs rise) and with a comfort-oriented character, something the GS does very well.

It has a modest torque figure of 221 Nm, delivered between 4,200 and 5,400 rpm, with progressive and very smooth power delivery. It offers several driving modes: ECO, Normal and Sport, all of which act on the accelerator, steering and gearbox.

In ECO or Normal mode it can feel like a sluggish car, given its size. But if you want faster throttle response, simply select Sport mode and you will realise that there are really 200 CV under the bonnet.

Handling

In terms of handling, the Lexus GS is a comfort-oriented car, designed to make travelling relaxing and to give all occupants peace of mind. It is a spacious car, with excellent sound insulation and suspension that aims to filter out anything that could disturb passengers.

On more spirited roads, some body roll is noticeable, entirely normal for a setup focused on comfort. Interestingly, the steering, which we liked, has a rather firm feel that becomes even firmer in Sport mode.

On the open road, besides that comfort, if you want to overtake in ECO or Normal mode the 223 CV seem to be asleep. This is remedied by pressing the pedal harder or selecting Sport mode, and you will immediately notice a quicker and more agile response.

The brakes are adequate but, like all hybrids, they have a spongy pedal feel that at first makes it seem they do not stop as they should. It is a matter of habit, and it happens with all Japanese hybrids; over time you get used to it and discover that when you really need to brake, the brakes respond superbly.

Fuel consumption

This is the section we liked most about the Lexus GS300h, because achieving an average of 6.5 litres per 100 km on the motorway is a very good figure.

In the second part of the Lexus GS300h test we analyse its exterior design, its spacious interior and the quality of its finishes, as well as the price and equipment of the Lexus GS300h, before concluding with our personal assessment of the car.

Photos | Diego G. Moreira