maybe the wrong analogy to use for people that actually know cars lol. thats just how my psych described it. Probably because it's top of the line and everyone wants it. I don't want a come-up or down. I don't want to feel wired for 4 hours then crash. Some people do, but that's why I avoided adderall and friends. I didn't ever want to feel the urge to abuse my drug either.

Vyvanse is so smooth and lasts so long that I'm on the lowest dosage and plan to stay there forevs by taking tolerance breaks. Lasts all day into the evening so I can be productive at more than just work. shits real nice