This is all pretty amazing... it reminds me of when I was in High School back in the 60's (ya... I'm that old) Back then, cars were custom-izable. With a bit of mechanical intuition you could work on a car, change it, soop it up, etc. Today, you need an engineering degree, just to get into a dash panel is a puzzle. Maybe bicycle modification is the modern answer for what we used to do with cars? Back then I had a 55 Chevy, a 56, a 57 Bellair.. I did all sorts of mods to them. Installed a Hurst shifter on the floor instead of the column mount, put lifters and different shocks on them, changed the wheels to chromed wide ones with slicks in the rear, replaced the carburetor on the V8 with a 4-barrel, added dual exhaust headers with glass pack mufflers, etc., etc. And, it was all done on not that much expense, unlike car modifications today. The only limitation I can see today is taking a new girlfriend out on a date? But, then again, there are no drive in movies to go to anyway, so maybe that isn't so important...