Amtrak continued to use the bi-level and the tri-level autoracks that Auto-Train had used. For passenger equipment, it initially used a mixture of former Auto-Train railcars and mid-century long-distance railcars from Amtrak's general fleet, all rebuilt to Amtrak's "Heritage Fleet" standards. In the mid-1990s, Amtrak replaced all these passenger railcars, which were of the conventional single-level type, with its newer, bi-level Superliner I and II equipment. In 2006, the aging bi-level, tri-level, and "van" autoracks were phased out and replaced with 80 new autoracks. Unlike the old racks, the new racks have uniform heights, and are most similar to the "vans" of the previous fleet. , an "Auto Train" consist is normally made up of two General Electric P40 locomotives (and sometimes a third engine) and up to 50 railcars (passenger and autorack), for a total length of or more. A typical train has one transition sleeper (for the crew), six sleepers (including two with all Deluxe Bedrooms on the upper level), one diner and one lounge for sleeper passengers, four coach cars and a cafe for coach passengers, and 20–30 autoracks. The "Auto Train" is often said to have the longest passenger train in the world, although (as mentioned previously) it may be best regarded as a mixed train, rather than as a pure passenger train.