I'm 6'3 as well with a long body and don't fit in 80ish % of cars and I fit wonderfully in a Model S even with the sun roof. Heck, I could even pull off sitting

I'm 6'3 as well with a long body and don't fit in 80ish % of cars and I fit wonderfully in a Model S even with the sun roof. Heck, I could even pull off sitting in back if a 'normal' sized person was driving. I am very pessimistic I will fit into a Model 3 though, especially with a car seat in back. My hope is to find a used S in a couple years.