I think paul might have said after he gets up from sleeping with the blonde haired cop he wakes up and immediately starts working on a mustang engine just before the rock shows up.
I think that might have been a Grill he was cooking on. From what i remember the top half was upright to the lower half like grill you can open/close.
LOVE YALL COME TO ANN ARBOR, MI. THATS WHERE I LIVE. I WANT TO PARTY WITH YOU GUYS!!!!!!
http://www.aceshowbiz.com/images/still/fast-and-furious-6-picture01.jpg
(might help, but still hard to tell)