on Tirerack. You cannot search for 300ZX, but must select the 245/45/16 size. You can also get a matching front set at 225/50/16 as well. I've got about 500 miles on my RE-11s and they are great tires for summer driving, but I suspect will be awful in anything worse than light rain. Don't drive my Z in the winter much anyway and definitely not in any weather.