First of all - the mod is awesome.
But I have a suggestion, so please don't attack me . When playing with this mod I found that its overpowering rovers in career mode. It makes gathering science very simple because of so many biomes.
But I think that could be balanced. What if the mod could calculate the average distance a rover could travel before a failure? It would also calculate the maximum and minimum speed of a rover. We could choose the % of the speed.
Here is the fun part - the faster the rover would go, more likely it is to fail after a certain distance. For example the wheels would fail and it would become much slower or simply unable to drive further (if the number of working wheels falls below 4). This would give much more realistic approach of rover's end-of-life. The rovers would still be VERY useful, but we would have to be more careful when designing them and at landing them, so they start near location where different biomes are not that far apart. And if we get too attached to a rover, we could still send an engineer to fix it
Thoughts?
(sorry for my bad english)