See also:

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 di ...

Interior Design
The IS models' luxurious cabin features intelligently designed displays and controls that are easy to see and use. Bright, clear Optitron gauges and smartly integrated metallic trim, or available ...

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 ...