According to TMZ.com, the 'Two and a Half Men' actor is thought to have splashed out more than $100,000 on a 2012 Lexus LS 600h hybrid-engine motor for his wife's birthday earlier this month, amid allegations he had cheated on her.
Ashton is believed to have picked up the motor on November 9, two days before Demi's birthday, but it is not known whether the 'Charlie's Angels' star accepted the present or if she gave it back to the car company.
Last Thursday (17.11.11), Demi decided "with great sadness and a heavy heart" to end her marriage to Ashton.
She said in a statement: "It is with great sadness and a heavy heart that I have decided to end my six-year marriage to Ashton. As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life. This is a trying time for me and my family, and so I would ask for the same compassion and privacy that you would give to anyone going through a similar situation."