Truck fleets have reduced pickup and van purchases less than 10% this year but heavier trucks 22.7% due to low business demand. The trucks they are buying are generally smaller and more fuel efficient.
Cars with voice command navigation and drive-by-wire throttle, brakes and steering autonomously are well into the future. Self-driven cars on stretches of highway are possible with existing technology in the next 15 - 20 years.
With a car stolen every 33 seconds and only 43% recovered, car thefts are still a major problem despite improving antitheft systems. Tracking technology like OnStar that can disable a vehicle and LoJack that radios location can be defeated by sophisticated thieves if owners are slow to notice theft and police are slow to coordinate with tracking company allowing system defeat.
Fuel and oil additives and replacement of spark plugs and air filters had little to no impact on fuel economy during extended tests conducted by Windsor Police Service. Keeping tires properly inflated did make a significant difference.