You probably know - but in case you don't BRINK (Owned by thule) has one:
http://www.brink.eu/trekhaak.php?lid=4&...97300&tid=1
Brand Lexus
Model IS200
Building year 1999 - 2005
Towbar type Brinkmatic Classic
towbar no. 297300
Bumper cut invisible
Ball in front of licenseplate no
Max. towing weight 1.400
Weight of towbar 17
Vertical load 75
Fitting time Up to 1 hour
Type and number of approval EC