The X stands for all-wheel drive, just as it does with current BMW's, although more modern models use the xDrive moniker. So, ...

It all started in 1986, four years after BMW introduced the second-generation 3 Series (E30). Intended to be a homologation special for DTM and Group A Touring specifications, the first M3 ...

In addition to the 16-inch Alpina alloy wheels and 195-series Pirelli tires, it came in four colors: Henna Red, Diamond Black ... the greatest E30 of all time? Source: Hagerty, BMW Blog, Speed ...