Out of all the popular cities in Austria, Vienna is the cheapest city to hire a car in at just £19/day. Renting a car in Vienna is 34% cheaper than renting one in Klagenfurt where the per day rate is around £28. Other fairly inexpensive cities in Austria to get a car hire in are: Salzburg (£21/day), Innsbruck (£21/day), and Linz (£24/day). While these cities typically have cheaper prices than the rest of the country, travellers looking to hire a car in Vienna should expect to spend around £19/day on their transportation. The most popular city to rent a car in Austria is Vienna.