I figure now is the time to caution you about hearing protection for your boys.
Not as important as that "other" type of protection (just remember that they grow up sooo fast) but still important for their hearing.
Repeated gunfire, loud concerts, continued use of head phones at very high levels, LOUD CARS, motorcycles, etc., etc., etc..
The DB levels in a roadster for a couple of hours are damaging to hearing and need to be addressed.
Get your boys quality hearing protecters with printed DB reduction (get a set for yourself) and use them as an example to the boys.
To see what I mean, just get a set of hearing protection muffs and wear them for fifteen minutes while riding in the roadster. Then take them off while driving. The difference in wind noise will amaze you. Combine that with exhaust roar and getting and using hearing protection will become priority number 1.
Once you loose your hearing, it's gone . Once you have tinnitus (that ringing in your ears) it's there forever.
Then in a few years you can talk to them about girls.
John