The Model X may be the greenest—and quickest—approach to tote up to 7 individuals over slope and dale. In our test the P90D went from 0 to 60 mph in 3.3 seconds and has a 250-mile range; Tesla says the P100D hits 60 mph in 2.9 seconds and has a 289-mile range. The 75D and 90D have 238 and 257 miles of extent; both are slower to 60 mph. The X is really useful, with all-wheel drive, an innovative lodge, and the striking however particular Falcon Wing entryways. Tesla's Autopilot semi-independent driving is discretionary.