Debtor, whose income is below the median in her state, is driving a two-year-old Lexus RX 350, which is a small luxury sport utility vehicle. Debtor does not drive the vehicle off the road, but feels safer in an all-wheel-drive vehicle during inclement winter weather. Debtor's car payments are $575 per month and will continue for another three years if paid according to the contract. The Chapter 13 trustee believes that the debtor could obtain necessary transportation at a lower cost. (a) The Chapter 13 trustee objects to confirmation, arguing that debtor does not reasonably need the vehicle at all because debtor could get to work and around town on the bus and a bus pass costs only $50 per month. This would increase debtor's disposable income by the $525 per month saved on car payments plus the cost of insuring and maintaining the vehicle. Should the Chapter 13 trustee prevail? Is the answer any different depending on whether the debtor has children