Historically, Toulouse had trams for a while, but like many bigger cities, they were removed in profit of cars. However, Toulouse has reintroduced a tram line in 2010 and has been expanding it since. Today, the main line goes from the city center, and goes all the way to the airport's entrance. The secondary line goes further behind the airport, to the exposition center.
Another little factoid: the tram network is integrated into the city's public transit network, which is managed by a single company; it shares several stations with bus stops and subway stations, and tickets from these are all shared. This means that you can hop on the bus, then switch to the tram, then take the subway with a single one-way ticket.
Oh yeah it's definitely on the slower side. The fact that it shares the road with cars in some portions probably doesn't help either.