Backseat is there for nothing but insurance purposes. and still plan on paying to insure a sports car, altho a 4-seater.
When the hell did they start putting auto's in them? no friggin way would I go that route.
And unless you have a second car for a daily driver, don't consider this as a DD.
They are not a winter car by a long shot(light, under powered, low to the ground). and once temps start dropping the summer only tires are worthless(unless you ordered it with the all season which are marginal at best), you will need winter tires, rims, tpms sensors for that time of year.
Don't stick yourself with something your going to regret, can't afford, and the I'm cool factor is going to wear off of quickly.
The frs/brz was the wow thing when it appeared, but has quickly become the miata of the car world.