Inseam: 37"

Need to drive in comfort on long trips, some trips 600 miles/2 days.
Spouse's Toyota Sienna leaves my knees and thighs suspended in the air, and I am anchored by my rear and heels.

I drive a 2009 Mercedes GL450, which is really comfortable, but is getting expensive in the maintenance cost category (100KMiles), so I'm thinking to getting a new car, and I'm looking for advice from long legged BH-ers, especially for advice on
- Tesla X
- What else have you been comfortable in?
- What have you found to be exceptionally quiet?
- Insurance considerations?
- Minor knee/back issues, so ease of entry/exit is important.
- Or maybe yet another MB GLS
would you buy New or Gently Used?