Assuming the cars were both brought new and drove the same milage and were scrapped upon the same day, possibly the Landrover. The Prius is a Jekyl and Hyde mish mash, as someone quite rightly pointed out the nickel in the battery is produced in Canada then shipped to Holland and then sent to Japan. The Area around the factory were the nickel is produced is heavily polluted due to the conecntration of toxic materials.
If you looked at the newer Lithium Ion battery powered Prius, you would need to question were the electricity is coming from that recharges the battery. The generation of cleaner electricity is the point to be addressed with coal production being more harmful than emissions.
I have said it before and will say it again the T25 and T27 city cars are/will fulfil what the prius didnt. The lightness and physical practicality of the vehicles (takes less power to charge than a prius), combined with thier ability to be recycled efficently and safer, ability to be produced in one factory which can also double as a show room (no delivery times) is what i think city centres need right now.