A car doesn't roll off the production line with rust. Once it's built it may sit around for 3 months before it even makes it to a dealers yard. There is no excuse for rust on a new car, but there is a lot of bare metal that covered by seals and trim. There is no paint protection, it doesn't get washed once a week either. Surface rust develops. It is at the pre delivery stage that it should be found and attended to before sale. If you want to blame anyone, blame the delivering dealer, not the manufacturer. Example, my new Outlander had to have the bonnet resprayed 2 weeks after I got it. When it came off the ship a bird crapped on the bonnet, a black car, sunshine and bird crap don't mix. It was polished out but had already eaten into the paint and the mark came back. This can be classed as defective too if you want, but had nothing to do with the manufacturing.
if you get no water or moisture on the car, yep no rust. I havent worked at a holden or ford dealership, but i have worked in a joint mitsu/merc/honda/suzuki yard which, yeah they sit around for a while but i have never ever seen surface rust on a newly delivered car. even after its been sitting in a yard for a few weeks. Its called model faults, you can shame ford but what about the wb ute from the 80's?? they have the WORST model fault ever, water collects in the tray & causes rusting of the tray/rear of the cab.... what about vn-vp commodores?? rattly, leaky, rusty around windscreens *&wheel wells.... The truth is ford make alot better quality cars, they may not of had the art in earlier series (making them fast/handle/look good) but you could pick on any model car for faults but holden is most definitely above *EDIT* ford. Id rather a motor built by ford than by holden, its clear since the xf that they have better building standards. The only thing that keeps me buying them is there cheap, go good and look good.
That comment is either over exaturated or your mates workshop doesnt know how to fit a headgasket correctly. a ford inline 6 headgasket has just as much chance as a holden headgasket going if the motors temperature is under control, i admit the fords made a stupid idea of mixing alloy with cast but they still work a treat if the cars running in gc.
On a one off occasion, yes blame the delivering dealer. But there is obviously an underlying problem here with so many rust issues so there is something for the manufacturer to answer for. How the manufacturer is judged, should be on how they DEAL with the problem though. Toyota had a bunch of REALLY bad rust issues on 10 year old cars in the states, one particular model. The replaced them with brand new vehicles and these cars were out of warranty (but the rust was bloody bad).