no.

according to article 5 of the regulations on the management of housing provident fund, the housing provident fund shall be used for the purchase, construction, renovation and overhaul of owner-occupied houses by employees, and no unit or individual may use it for other purposes. So it can't be used to buy a car.

Extended information:

Applicants for provident fund must be residents living in cities and towns, and employees on the job must continuously pay in accordance with the regulations during their employment. Housing provident fund is a personal housing savings fund specially reserved by employees for housing consumption expenditure. The paid provident fund belongs to individual employees, and no one else has the right to use it.

Reference: Baidu Encyclopedia-Regulations on Housing Provident Fund Management