Congratulations Bob. Bernese Mountain Dogs are great. Don't worry about him fitting when he is grown. That is the great part of the PT, fold and tumble those back seats forward and your BMD will have all the room he needs.
We took our Irish Wolfhound car shopping with us and the PT was the car he was most comfortable in (he had really gotten spoiled in our 1-ton Ford Extended Van with the second row of seats removed for his "puppy condominium").
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2003 Almond GT AutoStick, body colored rear splash guards and hood struts, chrome gear shift, AC & vent knobs, billet steering wheel spokes and pedals, AMX1397 Turbo-Intake Pipe.