2003 BMW X5. Same last detail date as the Carrera. Again, holding up nicely 9 months later. I again started with Werkstatt's Prime using a blue Propel finishing pad and followed with Zaino Clear Seal by hand.
Digital-
Comparison thoughts between Opti-Seal and Clear Seal:
1. Both have excellent slickness
2. Both take an equally small amout to cover a whole vehicle
3. Both dry streak free unless you use too much and in both cases, once the product is dry, you can simply wipe off the excess.
4. Opti-Seal has a very wet look, Clear Seal is more subtle-basically, how the prep looks, that is pretty much what you get. Side by side, Prime vs Opti-Seal, there was a very noticable increase in wetness. Side by Side, Prime vs Clear Seal, the increase was there, just not "wow' like Opti-Seal. The name "Clear Seal" though, is very accurate, basically, it seems to seal in the look you already have, probably so it doesn't alter the look of Z2 or Z5. In any event, Prime itself is pretty wet looking so topping with Clear Seal still gives a really good look.
5. Durability to be determined...