On-line Negotiation Set to Revolutionize Automotive Buying. Earlier this spring, a Portland, Oregon company, DealerPeak, piloted a revolutionary product called WideStorm. This service allows consumers and auto dealers to negotiate the car buying transaction entirely on-line. Dealers who have signed up for WideStorm can now allow shoppers that visit their dealership website to negotiate price, payments, financing terms and even trade values all on-line. When the dealer and the consumer agree on the terms of the transaction, the buyer simply comes in to the dealership to sign the paperwork a