Have had Ford, GMC and Nissan. The GMC was very expensive to maintain and the Ford started to get that way too. Kept both beyond 150K miles. Standardized on Nissan and have four NV2500 regular roofs, and one NV2000. Oldest one is 5-6 years old, and several are just a year old. New models have 5 year, 100,000 mile warranties. Very few problems. (still have one Ford E3500 that is going strong.)