Is there any truth to this statement and am I concluding the right thing from it?

"Loosing 1kg of rotational weight (ie wheel weight) is the straightline performance equivalent to removing 10kg from your car"

My car stationary with me in it weighs 1100kg

I currently have 16" escos wheels (about 16kg each), I have been offered some 16" oz super t's (8kg each)

Does that mean the saving of 8kg per wheel (32kg total) is equivalent to my car weighing 320kg less?

If not, I don't understand?

What benifits will this have to my car? better handling? faster?

Thanks