I've got 255/60R18 Wrangler HP's on my VX (these are OE on new Range Rovers). Definitely look better than the OE tires, a bit taller and wider (more like what the OE size should have been), they have an aggresive shoulder design, and are suited more for both on and off-road (good compromise). Handling is comparable to OE, even though taller. Acceleration might be hindered very slightly.