the american automobile association claims the average stay below $2, between $2.25 and $2.45. aa says costs may go up about $0.50 during refinery maintenance season. >>> 2015 brought us new innovations from wireless streaming to watches that help you work out. >> what can we expect from the tech world in 2016? abc's becky whirling takes a look. >> reporter: cool new tech. i am at stanford university where it is being dreamed up as we speak. what do these engineering students think we will roll out next. the driverless car. when you commute to work will you be in a self-driving car? >> eventually, probably, yes. right now it seems a little scary. >> reporter: these kids see the google driverless car tooling around the campus so they think it is normal. and they may be right. a huge wild card, could apple be planning a car? they filed a bunch of motive patents. environments low speed and controlled. industrial campuses, downtowns and the like, but nearly self driving cars are already here. >> reporter: on the fun side -- >> virtual reality will dominate the world. >> reporter: g

the american automobile association claims the average stay below $3. it also estimates the cost will be between $2.25 and $2.45. >> and still ahead, how facebook gave some users a shock, suddenly aging them several decades. >>> plus caught on camera. a crazy sight, a car goes down the stairs of a subway station. how in the world did this happen? team starts practice today. coach called to see how i was doing. i blew out my knee last year. just as college football programs began calling me. i didn't realize i'd get hooked on the pain pills the doctor gave me. i never thought my life could change so fast. for now at least, football and college are going to have to wait. >>> a group of teenager caught on camera pulling off a dangerous stunt. pushing a car down a staircase. the cell phone taken yesterday at a train station in belgium shows the teens launching a car down three flights of stairs. it came crashing down as people were in the adjacent escalator and landed on a busy platform. one person was arrested. >>> the state department is admitting it didn

the american automobile association estimates that drop in gasoline prices last year -- coulde been whoe $115 billion into consumer pockets. it was not all spent a lot of it was. whether you are satisfied with what the retail sales looked like last year, they would not have been as high as they were headed not been for this cutting gasoline prices. the overall retail sales were still disappointing. the cut in gasoline prices was not enough to give you a strong lead in retail sales but it kept them stable. scarlet: the fed prefers not to factor in oil into its inflation forecast. there are some people who now argue that the transitory effects of the oil drop on inflation or maybe not so transitory. they seem to be having a permanent effect. that oil has a limited effect on what we call the core inflation which is what the fed follows. it's inflation excluding food and energy. it affects the transportation like the air transportation part of the cpi but that is a relatively small component. cpi ,3/4 of itr are services and those services are not going to be much affected by the price of o