Are present day modular wheels actually stronger and lighter than one piece wheels? This was the case many years ago, but current wheel manufacturing processes are so advanced I am not sure if the modular approch is still valid. My understanding is that the center piece of the modular wheel is forged, the rims are usually rolled or forged. Forging creates dense and uniform grain structure therefore allowing thinner and lighter design. However, now a days we have forged or low pressure casting one piece designs. Without the need for rivets or bolts (even if titanium) surely the forged one piece design will be stronger and lighter than the modular ones. No??? 355 came with Speedline magnesium (not sure if forged or not) one piece wheels that were exceptionally light and strong. Saw first hand how well they stood up to impact in a track day event. The 550 also came with Speedline magnesium wheels before the recall to switch to aluminum ones due to nut seat cracking. I like the look of the modular OEM wheels, but would like to find out if they are actually stronger and lighter before spending big bucks for just looks alone. Thanks.