Are those US or Imperial miles per gallon figures? (So your altima gets about 13 - 14k/l?) My Yaris cost me around 11500 brand new, and takes me 450 miles on 10 gallons US if I drive correctly. That should be 724 kilometers on 38 liters, for about 19.1 k/l. Your altima costs $9.71 per 100 kilometers, the Yaris would cost $7.15, the TDI would cost $7.10. Depending on your driving and the continued cost of fuel, I'm not sure the TDI would be your best option, since you might be able to get a Yaris that is under warranty (or some other gasoline powered car with like mileage)
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