Here are pictures either sent to me by their owners or done by myself "just for fun". Note the filename of the one you like, and access it via WAP by
https://thanhwap.tripod.com/car/<filename>
After a short while, your phone displays "Image received" and offers you to view, save or discard it. Save it to your gallery, and from there you can set it as wallpaper. The actual download happens automatically!
accord.jpg
alfa147gta.jpg
alfa156.jpg
beetle-cv.jpg
benz.jpg
bmw7s.jpg
broughamvip.jpg
cediasw.jpg
cefiro.jpg
civic-h.jpg
clk200.jpg
clk240.jpg
evo.jpg
kia.jpg
lexus.jpg
lr.jpg
m3.jpg
mazda.jpg
mitsu.jpg
nissan-z.jpg
odyssey.jpg
polo.jpg
s40f.jpg
s40r.jpg
volvo.jpg
x5.jpg
xc90.jpg
z4.jpg
hsv.jpg
128stang.jpg