expensive, gasoline, pump, refueling, auto, automobile, automotive, car, concept, cost, dependency, design, drive, economy, energy, exhibition, fill, fuel, fueling, gas, gas tax, high cost, industry, light, luxury, model, modern, motor, new, petroleum, power, price, refill, resource, rise, rising gas prices, rising prices, show, speed, sport, station, style, technology, transport, transportation, travel, unhappy customer, vehicle, wheel
