You won’t get any deals on a new Tesla, you pay the asking price and that’s it.
If you don’t need an SUV, the current deal on the outgoing M3 ( due to be replaced/updated this year I believe) is a cracking deal. The new model may look slightly different but is unlikely to be a significant improvement.
If you don’t have to have new, there are some great second hand deals out there at the moment too.
The model Y is only available as a dual motor, 4wd variant.