I did that once on a part run from Chicago back to Detroit. At the time, my 90 YJ was lifted 6", running 33" AT's and had the CJ style roll cage. What I was bringing home was a set of 5 30" MT's for my (at the time) girlfriend's truck, which were in the back seat and a 92+ family style roll cage which was strapped upside down in the existing roll cage. I also had a transfer case in the front passenger seat and some other misc parts on the front passenger seat floor. Drove home with no top at all on and it started raining about mid way home. I just kept driving and eventually the rain stopped. Got a lot of looks that night!