Amazon offers the Power Wheels Disney Frozen Jeep Wrangler in Blue for $199.99 with free shipping. That's the lowest total price we could find by $20. It features a 5mph top speed, working doors, and 12-volt battery with charger.
Of note, this purchase qualifies for a Gund 2015 Annual Amazon Teddy Bear Plush for free when you add it to your cart separately. (Discount shows during checkout.)