Behind the WRX in one shot is a 7 driving through the parking lot. It was Red and Orange, I believe, but was unmistakable.
(Sorry if this was mentioned, I have not read the entire thread because I didn't want to spoil the ending for myself...still have one episode to go).
By the way, just joined the board...long time Lotus fan, hoping to someday buy a 7. Fell in love with them when I saw The (old) Prisoner for the first time.