Seat Ibiza ST 1.2 12V 69 PS Reference / EU new cars

Hello, my wife and I are looking for a cheap family car. Have found a car, but are not quite sure if this is all good what is offered to us. So the car is the following: Seat Ibiza ST 1.2 12V 69PS Reference in black met. / EU vehicle additionally the car has air conditioning, tinted disks as well as radio with MP3 function and the operator on the steering wheel. The car should cost EURO 10,500, – Is the price ok for the car? Now comes the crack point. Lt. dealer it is an EU new vehicle. So it has not been registered in Germany yet. Has 10km on the Tacho. He probably stood only since February last year at the dealer in the sales room. So not outside on the yard. So is that bad? Do you have to pay attention to something? It is a Seat dealer and he also makes a transfer inspection. Warranty extension will be available to us for 1 year. Maybe still to be high traded on 2 years. So with EU new cars we start the guarantee, so that you have to make a trial since 02/2013. Then the dealer would have to pay for the purchase price.