What's the best car to drive for > 100 miles / day?

I’ll be starting a new job soon that has me spending the majority of the time driving around visiting customers. Call it an estimated 1-200 miles / day. My pickup truck will not suffice here due to running costs, and I sold my GTI recently so don’t have that. Hooray, new car time!

Requirements are:

- New

- Cheap (Both purchase and running costs)

- Doesn’t suck

- Good seats for a tall person

- Good sound sytem

- Manual

Ideas? A new TDI is obviously out of the picture.