real rally mudflaps are much thicker. mine are EXTREMELY flexible. i'll get pics tomorrow. but they aren't plastic. i'm not sure the material. but its a semi mud flap.
terminator v8 in an SVT focus (soon to be boosted @ 20 PSI with a 2.9 L Kenne Belle on Corn!!!
(750 rwp and low 10 second focus, here I come!)