Just as a reference point, I ordered mine late January (Fleet vehicle) you can see the status updates I have it looks like it's about 2.5 months from receipt of order to receipt of vehicle.
Processing History
Action Date
Your vehicle has been shipped via railroad. 4/9/2011
Your vehicle has been built, and is awaiting shipping. 4/7/2011
Your vehicle order has been received at the manufacturer plant, and is awaiting assembly. 4/4/2011
Your vehicle order has been submitted for scheduling at the manufacturer plant. 3/18/2011
Your vehicle order has been received by the manufacturer. 2/7/2011
If you don't hear from me near 4-18 (seems like a long time for a car to ride a train from Chicago to Pittsburgh) which is the estimated delivery date, then you know I'm driving around happy.