I am doing a 50 hour trip in March with my sister for the main purpose of seeing the Taj Mahal. My flight will have us arriving in DEL at 3 am and departing 5 am 2 days later. My days are flexible as I have not booked yet. My understanding is that it’s closed on Mondays so we will probably go on Friday. That would mean arriving in DEL Friday 3AM and having a car meet us after customs to take us straight there which I understand other of you have done. We would visit it at different hours and perhaps go see the fort. We would than stay overnight (I'm thinking of the Mughal Agra to take advantage of my Platinum status) and return to New Delhi the next morning. Will stay at a hotel and see the city during the 18 hours we would have left but that’s for another post. Anyways I have the following questions:

1. What kind of cars can I expect? I do not mind paying more for a larger sedan that will allow me to snooze along the way, is this realistic without me sounding like a gas guzzling American?

2. If I do not need the tour guide during my 24 hours in Agra is it worth it to keep the same driver there or arrange for someone else to bring me back?

3. How is the train option back? I have not been able to find many experiences in the forum? Is there a 1st class? And does it allow you to see more of the country side than driving on the highway?

Thanks for any responses