You'll be glad to know that there's a huge variety of both luxury and economy rentals in West Sumatra. What you go with is largely dependent on your funds and what you plan to do. Specialty vehicles are hard to beat if you're all about comfort and class. If you're splashing out, why not pick up an SUV with all the bells and whistles, or perhaps an upmarket mid-sized vehicle? On the other hand, if you just need something to whiz around town in as economically as possible, go for an economy compact vehicle (or something else that won't burn a hole in your wallet).