I have had 3 dangerous unintended acceleration events with my 2020 Tesla S Performance when parking my S in the garage. Two events occurred on August 18 at 990 miles and one on October 12 at 1250 miles. All 3 were after a one hour plus spirited driving ride in which i used over 25% of my battery. We always take a 20 minute slow ride to allow the trans and engine coolant temps to drop. At 4:30 pm on August 18, it was 95 degrees in FL and the Tesla cooling fans were running until in after in the garage. I disconnect my seatbelt in the driveway and reset Driving mode to ‘Chill’ I park my Tesla on the left side and my GTR on the right. My wife directs me to position my right front tire against the 3 inch Riser on our 20” X 14” x 3/8 rubber Parking Mats. When my right front tire against the Riser, I release pressure on the accelerator which engages the brakes. At this location my Tesla front bumper is 19 inches from my workbench. I then push the Park button and exit the car. On this day the instant I pressed the Park button the car lurched 3 feet forward and over the 3 inch high mat Riser and hit my workbench. I instinctively hit the brake but the lurch happened in one second. My Tesla bumper had hit the workbench cabinets.. My wife’s face stands just inches from the right front fender. The forward bolt was so forceful it tossed the right mat backward four feet. I backed up and then I pulled forward to where I would normally park if using the mat and pressed the Park button Again the car bolted forward 3 feet forward into the workbench. Twice in 5 minutes, the instant I pressed the Park button which automatically engages the brakes, my Tesla lurched forward. 3 feet before going into Park. I then backed up far enough and got outof the car inspect the damage. The front bumper. was damaged and there was extensive damage to my workbench. We took photos of the damage to the car and workbench and covered the car. The next morning I tried to duplicate the incident but I could not. The next day I called Sarasota Tesla Svc and reported the incident. I them them a 3 page letter along with photos of the damage to the car and workbench. It still took me a week to repair the damageto the laminate workbench. A week later we went to Tesla Sarasota and I had them inspect the damage and numerous other flaws I had reported. Tesla engineers downloaded the EDR data from my car. I told Tesla Svc this would be an ongoing problem and would happen again. The Tesla mechanic told me Tesla will contact me in few weeks. I have received a thank you call from Tesla for ordering a 2021 Plaid but no calls about my incidents. We used our Tesla 4 times since the August 18 incident without problem. I left my seatbelt connected for these rides until after I pressed the Park button on the Parking Mat. I now know that disconnecting my seatbelt is a factor in causing this problem. On October 10 at :20 pm in 90 degrees heat we had a third incident. I had disconnected my seatbelt in the driveway. I had since sold my GTR and put the Parking Mat under the left tire. With both tires against the mat 3" Risers, I applied the brakes, pushed the Park Button and again the car bolted forward 3' over both 3" Risers. Using the brake had no effect. The car stopped just 1" from the workbench. Using both parking mats expended some of the forward energy and stopped the car from hitting my workbench. I sat in the car waiting for the cooling fans to cool the motors. My wife took photos of the car. I upbacked and exited the car. The left mat was tossed back 5 feet. The right Mat had was wedged under the right front wheel. I called Sarasota Svc the next day and reported the 3rd incident. I sent anther letter and more photos. Tesla engineers download the data from my EDR and have not responded. Tesla will never admit there is any unintended acceleration in any Tesla car.is Robert Belt, Electrical engineers report states that the overheated Trans sensor delays and send multiple impulse to the 2 TPS sensors before going into Park due to overheated sensors from the drive motors. He got EDR data from a Tesla report given to a Tesla S owner who had a similar problem.(https://www.autosafety.org/wcontent/uploads/2015/03/Teslas-Sudden-Acceleration-Log-Data-What-It-Shows.pdf) (https://www.digitaltrends.com/cars/tesla-sudden-unintended-acceleration-nhsta-investigation). These Tesla flaws are dangerous and disappointing. Tesla knows about them and does nothing. I have resported all 3 incidents to the NHTSA.