Vienna is a walkable city, for longer distances they have a convenient public transit system with metro lines( Ubahn), Streetcars and Buses running throughout the city.
https://www.wienmobil.at/en/monitor/PT and wienMobil app are the best sources for navigating public transport. It is free and may take a few minutes getting used to, but it will be helpful in Vienna.
You can purchase a monthly ticket that is valid on all public transport systems in Vienna`s corezone.
Car rental
Consider if you really need a car: Vienna is a walkable city with excellent public transportation, so a car might not be necessary. If you plan on exploring the Austrian countryside or nearby towns, then a car becomes more helpful, but buses and trains connect the country quite well.
Insurance: Rental car insurance can be expensive, so check your existing car insurance and credit card coverage to see if they provide rental car protection in Austria.
Tolls: Basically all highways in Austria and even small parts of Vienna have tolls. Rental companies often offer toll payment options depending on the lenght of the rent.
Parking
Driving in Vienna: Driving in Vienna can be challenging. There are congested roads and limited parking. As Vienna is implementing a new subwayline a a lot of construction is going on. Familiarize yourself with traffic regulations before hitting the road. On crosswalk pedestrians have their right of way and in some streets bicyles are allowed to drive against traffic even in one way streets. Keep your eyes wide open as there are lots of jaywalkers.
Parking: Parking is tricky in Vienna as from Monday till Saturday lunch time the whole city is a dedicated shortpark zone(max. 2 hours and payable) and a lot of spaces are reserved for residentals only. Therefor you have to rent a garage which can be quite expensive.
Bikes
Bikes are a great way to explore the city if you feel comfortable riding in a city environment. Most streets have bike lanes and traffic is aware of cyclists. More information on renting a bike in Vienna with the nextbike app or at https://www.wienerlinien.at/wienmobil/rad. They are widely available and easy to rent. They have to be returned in specifically designated bike parking areas.
