Welcome to the RoadTrip America Forum!

Unless there is something amiss with your vehicle, you shouldn't have any problems in the mountains or in the heat with that car. It is fairly new and has quite low mileage on it for the year. As a general rule, it is a good idea to get your vehicle inspected by a competent mechanic before taking on a trip of any length, to keep your mind at ease.

In between Niagara and the Grand Canyon are so many great places to visit, it's hard to narrow them down. After all, much of the acreage of the US is in that range!

Are you looking to travel mainly on Interstates, or US routes, or county roads? What are the types of things that you and your family are interested in?

If you have three weeks to do this trip in, that will give you a much greater comfort level than trying to do it all in two weeks. It takes around five days to go from one coast to the other, so right there you have ten days of driving, without factoring in any multi-day stops en route.