Judging by the Nurburgring and Laguna Seca times, they have to have put a decent amount of work into the suspension. The Laguna Seca track time was only 0.3sec more than a Lamborghini Huracan Performante, which is a mostly weight and handling-focused car, so I'm hoping it's going to be something special. Elon has also been quoted as saying he'd like to see low 7 minutes, or even below 7, from a mostly factory stock Plaid (+, I would imagine) on the 'Ring but I'll take that with a grain of salt.