I am a 57 year old female. I weigh 185 lbs (having just lost 87 lbs) and am 5'9" tall. I live in Texas but travel a lot in the summer. I live only a couple of miles from work so I think I could ride to work. I would like an electric bike (I think). I love to ride, but don't do well on hills. We were recently in Tahoe and saw a couple using the electric bike. I have no idea where to begin in choosing one. We travel in a Prius, so if we want to carry them with us on trips. I thought about the folding kind, but in a Prius, we would need a rack anyway. They are quite an investment so I hate to jump in and buy the first thing I see without thinking it through (but I am very impatient). Any suggestions would be great. My only bike I own now is a 1973 Vista 10 speed I got when I was 14. It has narrow tires and a narrow seat... neither which do very well for my much wider body! Thank you in advance for any input.