If youre going to change the size, might I suggest a 265 60 18.. They are easier to find and not quite so extreme for a buyer who doesn't necessarily want a very wide tire because remember that the wider you go the lower your acceleration performance and gas mileage.u

"V shaped" (directional) tires also tend to be noisier/rougher on the road so they will accentuate any rattles you may have. But increase wet traction.. Not quite as important for test drives. They do give a sporty look if your buyer is a street only/tuner type

That said the vx looks much better with larger than factory tires, and there are more options in 255/55/18 (wider), 265/60/18(wider and taller), 265/65/18 (wider and tallest) and 285/60/18 (widest and tallest)

When/if you go to have your tires price matched, keep in mind in order to match online pricing, many places will require you to factor shipping cost into the price per tire. If its a huge price difference, some places won't match because as much as they want your business, its not worth it to them if they are losing money on the tires.