I got Ultimate Race Pro bundled with my first 3D graphics accelerator card. Seeing true 3D rendered graphics for the first time was awesome. A true WOW moment!. I also purchased a full retail boxed copy of Motoracer, and I only had these 2 3D games to play for quite a while. At the time, the smoothness of the graphics was fantastic and combined with the "realistic" shadows and reflections on the cars I thought Ultimate Race Pro was the ultimate racing game. After showing my friend he too went out to buy a 3D card for his PC.
The bundled version was an early build of the game and did have missing features and some bugs, so when I saw the full retail version on sale a couple years later I purchased that too.
I still have both copies of the game and it does bring back fond memories of the excitement of PC gaming in the 1990's.