the thing with the established team is that they are there for the duration ( budgets permitting during the current climate) and do so out of love of the sport.
manufactuers are there only for publicity of their product and have no real love of respect for the sport (apart from ferrari, but the love for the sport could be debatable)
most manufacters come in to F1 for the glamour and global awareness, like renault, bmw and jaguar
if they dont get the results they desire they'll soon pull the plug
leave the cars to the enthusiasts and the engines to manufacters
LS's Tip of the weekESSENTIAL OILS aren't essential unless you're an engine, a gearbox or a twat