This has to be the best bargin out there right now! The newer version of the Seicane S6902, the S6902M (8-core CPU, 4G RAM etc.) has dropped in price to US$263..!!
https://www.seicane.com/car-dvd-play...oth-srd-8786-1
Oooh... I'm VERY tempted...
*edit* Hang on folks - reading the specs further down they state it's only quad core and 2G of RAM - WTH?
Looks like the page has messed up descriptions, images etc. - moving on....
(I was looking deeper to figure out why it was so cheap).