[Hayir]

Originally Posted by bbarclay410

There is no way that it is as stiff, or there would be no reason to upgrade to sport suspension. Its lower and tighter. Modern and Luxury lines are clearly not the same and even with DHP, its not the same. Could be a placebo effect, but most likely not.

RPM explained the technical details of the two suspensions well but just looking at the rpicing also proves this.

Check out the BMW configurator. You can buy sportline and it comes with the sport suspension. Than you can add adaptive m suspension and variable steering as an option for $1000. If the sport suspension is an upgrade to adaptive m suspension there wouldn`t be an option to buy it on sports line.

In some European countries (may be most) sport suspension does not come with the sportline. Sport suspension is a stand alone option and the price is less than the price of the adaptive m suspension.