if you (and your heart) really want this car, nows the right time to negotiate
either ask for a full refund
or
offer to "still" take the car, but at a negotiated reduced price (-15% or so ?), due to the lies and deception, basically depreciating the price of the car, so a small "cash-back", which you now could use towards having the car really get a good "once-over" at somebody like....ummm...Gizmo
so the question is, what does your heart say ?
I knew that my E38 was not well looked after, and when I took it for a test drive, I pointed out these faults to the salesman, the negotiated the price down (ala Mike from "wheeler-Dealer")
but my heart was in LUV with the E38, and I really wanted her