Car rental is not so advisable in Toulouse (TLS) as all the tourist spots are located very close to each other. So, walking is definitely the best way to explore the city. If you still want to rent a car there are a lot of car rental outlets available at affordable prices.
Top tips when driving in Toulouse- You should avoid going downtown with a car, as parking space is seriously limited.
Best attractions to visit in Toulouse- Basilique St. Sernin- This is the biggest Romanesque building in Western Europe; this was once a major stopping point for pilgrims. One should also visit the space city this is a huge museum cum space is home to a remarkable planetarium.