Bad example. Porsche's performance numbers are famously conservative. Most reviewers easily exceed what is advertised. Take the 911 GT3, a car I picked at rand

Bad example. Porsche's performance numbers are famously conservative. Most reviewers easily exceed what is advertised. Take the 911 GT3, a car I picked at random. Car and Driver testing found the following: >The GT3 offers both a seven-speed dual-clutch automatic (a.k.a. PDK) or a six-speed manual. ... At our test track, the automatic managed a 2.7-second 60-mph time while the six-speed manual test vehicle snapped off an impressive 3.3-second run to 60 mph. https://www.caranddriver.com/porsche/911-gt3-gt3-rs https://www.caranddriver.com/porsche/911-gt3-gt3-rs Porsche advertises 0-60 times of 3.2 seconds for the PDK and 3.7 seconds for the manual. They undersold the car by 10-15%. I'm more cynical than most, but it actually isn't normal to over-promise and under-deliver to the extent Tesla does.