the t100 was a completely different truck vs the 1st gen tundra. it offered 2 engine choices a large 4ctl and the v6. I owned a 100 and a 1st gen tundra. the tundra is head and shoulders better than the t100 in all ways. the t100 was extremely reliable and durable but boring to drive. I sold it with 175k and never a single issue with it. the t100 was built in japan in the hino factory .