I saw last year that a local Mini dealer was selling what I would call new cars (with 21 km on them) with a 'six year warranty'. They do that by CPO'ing them when new, so you get the four year plus 2 year warranty. All are 'demos' even though they haven't generally been driven.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue