Detection of variations in the relative velocities of the primary and secondary seismic waves – expressed as Vp/Vs – as they passed through a certain zone was the basis for predicting the 1973 Blue Mountain Lake (NY) and 1974 Riverside (CA) quake.  Although these predictions were informal and even trivial, their apparent success was seen as confirmation of both dilatancy and the existence of a preparatory process, leading to what were subsequently called "wildly over-optimistic statements"  that successful earthquake prediction "appears to be on the verge of practical reality." 
The C207 E-Class coupe is based on the W204 series C-Class platform. The C207 E-Class shares its wheelbase with the W204 sedan. The axle tracks are within a tenth of an inch of each other, and are about two inches narrower than the front and rear tracks of the W212 E-Class sedan. While the W212 E-Class sedan is built at the Sindelfingen plant, the E-Class C207 coupe is built in the Bremen plant alongside the W204 C-Class. Mercedes-Benz is defensive about this relationship, clarifying the original reports by reporting that the C207 shares approximately 60 percent of its mechanical components with the W212. However, this includes powertrain and other technologies that are shared with the E-Class but does not alter the fact that the fundamental structure is W204 derived. Motor Trend , along with other media outlets reported that the coupe "feels nothing like the new E-Class sedan" to drive.