Elin Nordegren -- who we're told was staying at the Windermere mansion guest house last night -- is getting rid of anything that might bring up bad memories ... in this case, her hybrid Cadillac Escalade.



No, Elin has her own ... and neighbors tell TMZ, she brought it to an Orlando body shop on Tuesday to fix up some recent rear bumper damage.

We're told Tiger's primary female is gearing up to trade it in for something she doesn't associate with toppled fire hydrants -- a fully loaded, black on black Cadillac SRX.

Here's to hoping it will finally be something she can actually trust and rely on.