Drive your truck through mountains to get to the finish line. As if, the mountains are not an obstacle itself, there are also other obstacle like oil spill, and barrel. Some bridges are also made from barrel, which you will have to cross very fast because it collapses once you stayed too long on that bridge.
If you want more challenges then change the weather condition so that the road will even be more slippery. If you accidentally fell on your back, it is not the end of the road for you as you can get back on track. You just need to do it very fast before your life bars turns zero.