Nope, I only borrowed PS4, as my mate want to see my new plasma in action with a PS4

That post about the rebuild database was from the same thread
@TT92 posted. I don't know why are you so fired up about others sharing their experiences with playing a game. Do you think anyone who said they had a crash are lying ? You are very lucky to have no crash until now, be grateful as others are not so lucky. Crash here means being kicked back to XMB home screen.
If you want me to shut up, fine by me, I see you didn't like me posting anything about Pcars.
I played on disk copy too

I didn't set on career when playing last time, but tried many different cars and track, on different game modes, my mate's driving most of the time as he was seeing if the plasma is any good. The crash happened in about 2 hours after changing about 10 cars, more than 10 tracks, going back and forth to garage, tuning and do some odd photomodes.
Looks like
@FLX1981 got it too

From same thread at Pcars official forum :
"
Today it happened to me too. Couldnt reproduce, completed the race with no problem after restarting the game:
Game mode: Career, US GT3
Session: Quali
Car: McLaren 12C GT3
Track: Road America
Weather: Light cloud, 33% race length, time of day unknown - during the day
Discription: Was on lap 3 of qualifying, ran wide at the kink, when I tried to hustle the car back onto the track, the game froze for a few seconds, then crashed to PS4 menu. Report sent to Sony. Right before it happened, I had my first ever loss of FFB (FFB dead when starting the session, needed to leave and re-enter the session). Played about 2 hours at that point, with one or two breaks for a few minutes with the game idling in the career main menu."
"Just had my second crash to home screen.
Game mode: Career, Euro GT3
Session: Quali
Car: McLaren 12C GT3
Track: Barcelona
Weather: Clear, 33% race length, time of day unknown - during the day
Discription: Was on lap 2 of qualifying, overcooked the entry to Turn 1, car veered off the track, game froze for a second, then 2 seconds black screen, wheel going constantly left/right at a 90° angle until I grabbed it, then it was frozen rock solid at about 90° to the right. Report sent to Sony. Game was idling in the career main menu for about 30 minutes before this session.
"
http://forum.projectcarsgame.com/showthread.php?37281-PS4-Crash-to-Home-Screen-After-Patch-3-0/page2
Another by Rocafella1978:
"
had several disconnects today and crashes to blue screen of death while trying to setup MP lobby. had disconnects during practice (2 guys at once) + (1 blue screen of death) and quali (5 guys at once) and in race had (2x player elevating floating cars at lap 49 of the race, with both cars tires still good to run at about 20-25%)
approx. all happened around 910-940pm EST.
- 9 players (all human)
- Sonoma Raceway Short (in game race start 1pm) - set to 50laps
- Practice 10mins, Quali 10mins, Warm Up 5mins
- time progression 10x
- weather clear"