I was able to carry 4 250mm wide slicks in my Z. One rides shotgun, one in the spare tire well, one shoved all the way to the passenger side of the hatch, and one all the way on the driver side. The hatch would just barely close, and there was enough room in front of the strut tower bar for a small tool box and a helmet. Jack fit underneath the top layer of tires. It's tight, but you can do it...