Is there a car which you cannot fix? or attempted to fix, but you failed?

yesp< yesp<  yesp! mY COMMUTER HAS A lisp! tEH delorean ENGIEN S IS unreal TO REPAIR !I tried it AND i MA A great TECHNICIAN! iT HAS cylinder cast iron sleevves WITH sahim UNDER THE c sleeves IN various SIZES! iT IS A volvo engien THAT THEY stopped MAKING DUE TO THE compleity OF REPAIRING! yOU HAD TO remove THE heades AND THEN pull oUT THE sleeves And GET A new SET OF pistons AND sleeves and SHIMS TO INSTALL! I have resotred DOZENS and DOZENS of BMW cars and many BENZ and AUDIU cars and ONE old CORVETTE once! That PVR engien (PEUGEOT<RENAULT, VOLVO)Is a TOTAL NIGHTMARE! NEVE finished it just TOSSED it AWAY! 

TESLA  he won't allow you to fix it.  He knows as soon as you go in there, the software notifies TESLA and your warranty is null and void.  Then there was 94 Hyundai. As soon as it broke you left the car where it was and walked away.  It wasn't worth a spark plug.

 I bought an old sports car and when we finally got it running it pyssed out oil.

 When I called the dealer for parts he asked for the VIN of the car. When I told him he informed me my car had been part of a factory recall.

 The factory replaced the motor!!!

The new motor was worth more than I paid for the car !! So I sunk a few thousand more into the car and made it even better.

ANYTHING created by man ca be repaired by man.

I have yet to see a car i couldn't repair

Plenty beyond economic repair, but if you've got the money, I'll repair anything.

Yes.  But only because it made no sense to spend the money.