I dunno if this is exactly what you're looking for but i really like toyota's website http://www.toyota.com/

I think it looks better than other manufacturer's websites...in terms of technology i like how they show the pictures of the vehicles, with the little light up thingy when you mouse over..simple, but nice. And they're the only site i've found that lets you search dealer inventory online, it can actually show you right there if the car you want is available. It's a really clean site, loads fast, and actually looks right on a widescreen resolution.