This is a good gun. Pistol sized but with SMG capabilities. The small round is quite capapble of doing harm, and serves the purpose of the gun: a PDW.
Several (if not a lot) of arms companies right are making a series of PDW, or Personal Defense Weapons. This is H&K's entry into that arena and it fits the requirements perfectly.
Personal Defence Weapons are easy to conceal, light weight, and can also deliver a fairly high volume of fire. Thye are perfect for bodyguards, a vehicle drivers.
Don't kid yourself, the small round will go through one side of a car (which is all you need!) and probably out the other side.
FN made a bid on the market several years ago when the rolled out the P90 and it pretty much bombed. The Russians have about dozen different companies working on their own concepts.
Now for something really sexy check
this out. Yep that's right, its new and just released maybe three weeks ago. Heck, it isn't even up on the H&K German site. Hot off the press folks!
Oh, and for those of you that don't know, the English no longer own H&K, it has been bought back to Germany by a group of German investors.
Cheers!