First of all, there's a wide variety of luxury rental vehicles in Rio Grande do Sul State. What you end up going for will depend on your budget as well as what you plan to do. Specialty vehicles offer the best in mod cons and comfort. If you're splurging, why not pick up an elite SUV, or perhaps an upmarket medium-sized vehicle? Otherwise, if you just need a set of wheels to get you around town as efficiently as possible, you're better off going with an economy vehicle (or something else that won't burn a hole in your pocket).