The E53 X5 was the first X series available. It was introduced in 1999 and available
with a 4.4 litre V8, producing 286 HP. That same year, a 3 litre 6 cylinder with 231
horses was added. The X5 proved to be a huge succes, so in 2001 BMW added a
3 litre diesel and a 4.6is with 350 HP came available in 2002. Although not needed,
BMW thought it was time for a facelift, which came available at the end of 2003,
along with a new 4.4 litre V8, an updated 3 litre diesel and a whole new 4.8is.