Vmo... its not -5 - its just -5%

Anyways... lets try something using this body:

So we go for something pretty standard - 2L DOHC, Direct Injection - some modern sporty ECO-Hatch.

This took me 5 minutes to build - MacPherson front, Wishbones back - FWD Transverse with 1.3tons and 105kW. Chassis and Body is full steel.
The suspension setting does not change that value by a lot - so that not the issue. Lets take a look at the tyres! Oh its 195/50 R15 Semislicks! Well lets see what happens if i put on 195/75 R11 Semislicks on it.

Logically the car does not response so well anymore thanks to the high tyre wall. The compound is not so important there - the impact of it is rather small. Changing to 145/100 R11 changes the Multiplicator to -0.5%. Enough about tyres - lets try to change the weight! And use a aluminium body and chassis.

So we gained +0.2% with 200kg less weight! With a full carbon fibre car (900kg) I got to +3.1%. Lets revert to the normal steel chassis and try a different body - keeping the same weight and power.

Lets go for this one.

1.3tons and 195/50 R15 Semis, but shorter wheelbase. Changing to aluminium has the same effect as before - +0.2% with 200kg less weight.
Also beware - there are two Dynamic Response stats - one in Tameness and one in Sportiness. And i dont see that stat as vital important - in the tycoon part of the game only the big stats like Sportiness, Tameness etc. are important - all those multiplicators probably wont taken in account. But thats a different story.
Trollercoaster was basically right there - a very light and short car (Lotus Elise anyone?) is way more responsive compared to a heavy and long car (Like a BMW 5series) - Suspension does not matter - the BMW can have the ultra-highend stuff and still be unresponsive. You say the tutorials are not complete? Thats right, spot on observation.
In the first post you said "Which is the correct setup to have a comfortable, but sportive at once car, suspension setup?" - that had never to do with dynamic response - only with the main car stats. The answer is still easy - make it sporty and then put in some better interior and entertainment in it and soften the suspension slightly.
//pyrlix