GARAGE???

You do not need a spaceship. Later in the game,Rosalina will tell you that some toads escaped from Peach's castle. They have a spaceshipthat the luma's will help fix. Get a few more stars and the ship will be fixed. In future levels,either the toads will help you out a bit,or you must help them[ example:A sticky Situation Level.].

P.S: There will also be a mail toad just outside the garage who will sometimes give Mario letters from Peach. The letters will include 5 lives.

You get the garage unlocked when you rescue some toads that escaped from princess peaches castle.

The garage is the place where the starshroom is being built. The starshroom is an starship with the shape and colors of a mushroom. Pretty odd, huh?
Hope this helps!

After you get a few stars toad and co will come and help you get stars so the Lunas build a star ship shaped like a mushroom

Hey I talk to all the toad in the garage because roselina said "Go to the garage, they want to tell you something" in red but I talk to all of them someone please help?!

The garage is a place for 3 things. 1.Toads will give you tips and good luck charms. 2.Toad's will help you sometimes or the will need your help when you get that much power stars. 3.Have a crate with a 1 up inside.Have fun.

The garage is where the Starshroom is built and located. The Toads that escaped from Peaches castle ask the Lumas' help to build the Starshroom. When they build it, The Toads will be in it in some levels. Luigi is always there and there is a hidden 1-up in a crate there. Other than that, there isn't really anything exciting about the garage.