The Stratos, Z3 Coupe and the Europa? It's obvious you guys have no idea what design is... They're timeless classic who inspired (and will inspire) designer for decades.
As far as I'm concerned, ugly cars that have not been mentionned here include the Ferrari Mondial, Enzo and 612Scaglietti (and the 430Whatever it'll be called but it'll end in-a, whenever it's produced) the R34 Skyline GT-R (look, a brick with a big ass wing!) the whole current and upcoming BMW range, and the Mercedes SLR McLaren, which has too many scoops and air intakes for its own good.