Anything can be done but the GT3 is truly a race car with plates. It is the least family-friendly of the modern WP Porsches and might quickly rattle the fillings loose on Calgary roads. May I suggest a 997 C4 or Panamera instead? They are the true GT cars of the modern lineup and both offer pretty stunning performance in the canyons and on the race track.
Here is a converted GT3 for reference. Note the low stock ground clearance.
A Porsche GT3 with back seats? Yea I know, weird right? - Rare Cars for Sale BlogRare Cars for Sale Blog