Performance

Review-OnRoad You need to work the 2.5-litre V6 petrol engine hard to extract maximum performance, but it pulls cleanly from low revs and is punchy enough for assured overtaking. Similarly, the diesel is fine at low speeds, but the gearing is too long and you often find yourself going from sixth to fifth to keep up with motorway traffic. The V8 petrol engine in the high-performance IS-F model is sensational, however, churning out 417bhp and hurling the car from 0-62mph in just 4.8 seconds.

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    If a warning message is displayed
    If a warning is shown on the multi-information display, stay calm and perform the following actions: 1. Master warning light. The master warning light also comes on or flashes in order to ind ...

    What’s it up against?
    Equipped with a V8 engine, the GS’ biggest traditional rivals come from Germany – namely the BMW 550i and Mercedes-Benz E550. But can-do home-market competitor Infiniti’s new M56 presents serious ...

    Engine compartment
    1. Power steering fluid reservoir. 2. Engine oil filler cap. 3. Engine oil level dipstick. 4. Brake fluid reservoir. 5. Battery. 6. Fuse box. 7. Electric cooling fans. 8. Condenser. 9. Radia ...