For 2010 Ferrari do indeed have their oil tank in a conventional position at the front of the engine. Pre-season it was widely predicted and reported that the oil tank was moved to inside the gearbox casing, to free up fuel tank capacity. I spoke to Willi Rampf at the Sauber C29 launch and he confirmed that the Sauber uses the entire Ferrari engine and gearbox set up, complete with oil tank at the front of the engine. Thus it made sense Ferrari also had this set up. Last year due to KERS Ferrari split their oil tank with a secondary oil tank mounted to the rear of the engine above the clutch, this was enclosed by the gearbox when installed the complete car. This freed up space for the MGU and batteries.