Speed definitely offers a more glossy look, a wetter look I would say. I've applied Speed as I would KAIO and as just a sealant type of product, and the durability and shine seems to be the same, there's no difference.
I think 3D may want to look at how it markets Speed, as it is confusing in what it claims versus what it actually does.
From the 3D website:
Name: HD Speed - All-In-One Polish/Sealant
Description: "HD® Speedâ„¢ polishes and protects the painted surface in one easy and simple step. Removes light to moderate surface scratches and swirl marks. This remarkable product restores color, depth, and gloss while adding a long lasting wax to the surface."
"Great for those who want quick paint correction with amazing paint protection."
Instructions: "Shake well. Best applied using a DA Random Orbital Polisher, may be applied by hand. Set the DA Random Orbital Polisher on medium to high speed with a polishing foam pad apply a thin layer of product over the entire painted surface. Apply in a cool dry place. Easy on and easy off removal. Just use a clean dry micro fiber towel and buff product off by hand to a deep, high gloss finish."