On-again/off-again lovers Lindsay Lohan and Samantha Ronson are blazing white-hot once again after the Labor Pains star presented her DJ GF with a $300,000 SL65 AMG Black Series Mercedes-Benz in an effort to patch up a string of recent relationship woes.

Wait….Lindsay Lohan has $300,000?

The National Enquirer’s Mike Walker claims LiLo purchased the sleek new whip for Sam when the duo appeared at the BevHills Montage, sponsored by–Who Else?–Mercedes-Benz.

The Benz is not yet available to the public.

Halfway through the gig, a flushed and excited Lindsay pulled Samantha off the stage, took her outside and pointed at a display featuring the evening’s shining star….”You see that beautiful car, Sam?…I just bought it for you!”