out of the box approx 12 mph
you'll need to upgrade the bushing to ball bearings, upgrade the drive shaft, and upgrade the shocks. if this is your first car, take the mods one step at a time so you will get used to the speed and handling.
if you gear the silver can motor to about 5 to 1 overall ration you probably can hit around 20 mph,
then you can go to a stock racing motor, and depending on the gearing around 25 mph plus
with better batteries and 19 turn probably 25 to 30,
if you want just speed the easiest way is to go to a hot brushless,
for a beginner I do not recommend this unless you are prepared to crash hard and destroy parts.
a good local hobby shop should be able to direct you the the right direction.
this is a excellent chassis for racing, drifting or rally, tamiya makes excellent electric cars.