They asked for $34bi-$38bi, later changed to $20bi, and it seems they could get $15bi:

Under the plan, unveiled by Democratic leaders, the Treasury Department would cut checks for the car companies as soon as next week. The proposal also calls for President Bush to name a “car czar” to manage a vast restructuring of the firms and restore them to profitability.

The $15 billion loan, about $150 bucks per taxpayer (considering 100 million taxable returns), would come from the previous loan program approved this Fall, a $25bi program originally aimed at helping automakers “retool factories to produce more-fuel-efficient vehicles”.