Proximity key and push button start
 

Des anyone make a Proximity key and push button start for a 2001 Boxster S?

I don't see how it's possible to do while keeping the security pill in the original key an option. The key has to be too close to the receiver for it to work. That would mean having to place the key in the same spot every time you get in the car to start it.

Now if you don't care about that security feature, you could mount the pill from the key permanently in the car and use any of the push button systems available.

I've never looked to see is any of the push button systems also use a security pill with a longer range though, if so that would be an option.