You can do a lot to make a good garage great? First, get organized.
Many companies offer shelving and cabinets made just for the garage.
Not only do these look fantastic, they keep your tools safe and organized so the next time you need a socket wrench, you won't waste any time finding it.
Next, since many modern garages are drywalled, consider painting.
Painted walls will make your garage a showcase for your car and make the space more comfortable and inviting.
If your garage is also a workshop, they'll make it look more professional.
Good lighting will also make your garage safer and more enjoyable, so consider dropping a ceiling and installing some fluorescent lights.
If that's too much of a hassle, have an electrician hang some new fixtures from the roof...
no ceiling necessary.
Finally, don't forget about the floors.
Garage floor tiles look great and can be had at very reasonable prices.
They come in literally hundreds of colors and designs and allow you to make patterns and can even be printed with custom logos.
Nothing says you love Ford or Chevy as much as a ten foot logo across your garage floor! What's more is that tiled garage floors are safer than epoxy or bare concrete because they add traction and protection against slipping, which can be a really big deal in wet or snowy climates, or in working garages where spills are common.
A custom garage can be the icing on the cake for an already great home, don't forget about it.