They looked similar from a distance (similar size, same large sloping rear and similar lights)

See:
Liberty: http://allworldcars.com/wordpress/wp...cy-sedan-2.jpg
GS430: http://images.thecarconnection.com/l...00008647_l.jpg

I thought it was a new Hyundai when I got closer. I've never confused a Euro for a Hyundai