Honestly, the story for Nemesis was just bad. Not Final Frontier bad, but almost as ill contrived as the plot for Final Frontier. It had a poor villain, with attempts at fan service that ended up thrown at the cutting room floor. It would have been better if somehow Lore was revived and we dealt with a crystal entity plot, or if they had Sela be the main villain. The dune buggy scene was excessive and not necessary. If they were to break up the movie into television episodes, then it would make sense to include the scene. However, since it's a movie, it does very little to advance the plot, other than to open up the possibility of bringing back Data in the form of B4.