depends on what year, but in the upper 160's is top speed. 0-60 on the s model is low 5.x seconds. plenty fast, but not the fastest thing on the street, but speed isn't everything, handling, braking, steering, and fun factor should be considered. the boxster delivers.
the boxter
go to the front of the car and open the hood if the engines not there your screwed
Use Porsche antifreeze. Get it from the dealer or online.
I believe the base model 987 Boxster's top speed is about 155 mph or approximately 250 kmph.
$47,600 USD
In the front trunk
Well I love porsche in fact i am getting a porcshe boxter when I am 16 and I believe the max speed of a porsche boxter is 150-160 MPH range. My friend boosted the engine and got it to go 210 MPH. The reason the boxter can go 165 is because of its high horsepower engine called a 2.5-liter dual-overhead-cam 6-cylinder produced engine with 229 horsepower engine that has evolved threw different years now in 2011 it is about a 6 cylinder 3.45 engine.
Rain
Porsche Boxter S, Fiat Panda, Ferrari F430 and lots of Old Rollers
near the fuse box
$750.00
No, you will ruin your car. A Chevy engine should not be put into a Porsche Boxter. I would recommend if you have the money, to buy an engine that is made by porsche that can go faster than your boxster.