Sonic Price – is your assurance that the price displayed is based on real prices people in our community have paid for the same vehicle. We have saved you the time and hassle of back and forth negotiation to bring you a fair price because we feel that is what our customers deserve. Click here for this months APR and Lease offers available from Momentum Porsche. Visit for other great Porsche offers. Contact our Porsche Sales Staff today at FOR TEST DRIVES AND AVAILABILITY. As the largest Porsche dealer in Houston, you can rest assured that you will find exactly the new or preowned Porsche you are looking for.