I've been using nexen on both 540's and the 550.

N3000 and N7000

The N3ks are more all season / street. (DD)
The N7ks are more summer than all season. (performance)


All in all they are VERY good tires for their price and i don't regret buying them one bit.

Im not sure how they are on the X though.

__________________
~The Family Cars~

1997 BMW 540i [Jet Black / Black] [None ]
2001 BMW X5 4.4i [Jet Black / Black] [Sport]
2003 BMW 540i [Sterling Gray / Gray] [Msport] [Shades] [Folding seats] [DSP] [Aux] [ICE V5]
2008 BMW 550i [Jet Black / Black] [Sport] [Paddles] [Comfort Access] [IPOD] [Shades] [Nav] [PDC]
A 5'er that was almost too good too be true.


C~Certain
P~Problems
O~Overlooked