Complete Cartoon City Set, low poly models very optimized assets. It is very useful for mobile games. I already created a sample city scene with proper lightmapping.

Create your own city using this assets package.
The package contains:
17 different type of building,
Each assets have individual textures 512*512.
Four trees, bus stop, dust bin, fire cylinder, four type of barricades , two type of signal lights, telephone booth and one road sign boards

One road and BG planes

Every asset and building included has a prefab set up for you. You can create your own city using this assets package.