Dismantle it. take off all the parts. start with the bumpers and lights then on to doors and fenders. after that, undo the engine from the mounts and the gearbox too. undo any last nut that u can find. label each part so that u ll know where to put the part when reassembling the car. its better if u make diagrams. trust me it wud come in handy. wrap all the parts in plastic, make sure theres no contamination or dirt in them. put the plastic parts in a temperature controlled area. any cold storage in u city's suburbs wud do. keep the engine oil along with all other oils n fluids in seperate bottles, make sure u label the bottles too because cars might not work perfectly if u put engine oil in the fuel tank and brake radiator coolant in the engine.
Once u have all the metal parts, wrap them in a sheet and put them in a strong box. make sure its a water proof box, im telling u, global warming is catching up and there might be floods everywhere. u dont want water in ur car, do u? it wud be even gud if u can treat the metal parts with anti rust treatment. Anyways, once all the boxes are packed and u know that ur car is safe, store the boxes in a safe, high place where kids cannot reach. put a "Fragile" and "This end up" sticker on the boxes before u leave.
now, when u come back, just open ur diagrams, open the boxes and start assembling ur car! thats how simple it is!
P.S. Two months man! Just lock the car, throw the keys in ur house somewhere and leave. Nothings gonna happen in two months.