I would buy used if there was something made that is better on fuel than my 7.3. The last 7.3 was 03 and the first Gen Sprinters rust worse that the Fords. I hear the Duramax can do pretty good but I think $12,000 diesel option is a bit steep. I priced out a Savanna at $50,000 for a cargo van and good luck finding a used one. WOW. I live in the "Rust Belt". I bought my 02 E350 used and have 700,000 miles on her. It runs great but it's the rust that's getting to her. I'd also really like to step up to a high roof, AKA Sprinter, NV, T-Series as I spend alot of time in her.