Still. Interesting concept. You could reinforce the Model S which would add significant weight and would decrease range but I'd imagine for patrol duty, it would work well. Plus, sitting on the side of the road wouldn't require running a gas engine and wasting fuel. I have no idea how much weight is added to police cruisers over a standard car but would a police car using the 80 kWh pack that only got 100-150 miles of realistic range (making these numbers up obviously) be worth it to police departments? I'd imagine in bulk, Tesla could bring the price down but not sure if most departments can afford such a potentially expensive car. Cool idea though.