There are four possible opening gambits: the 428i for $40,500, the 428i xDrive for $42,500, the 435i for $46,000 or the 435i xDrive for $48,000. After you've chosen your first move, there are three trim options: the $1,400 Luxury Line that features lots of chrome and wood (shown), the $1,700 Sport Line that adds lots of gloss black and contrasting trim color and stitching, or the $3,100 M Sport that offers the M Estoril Blue hue and lots of M-division specific accessories.
Starting with the 435i xDrive and M Sport, we then added items like the 19-inch wheels ($900), the Dynamic Handling Package ($1,000), Cold Weather Package ($700), Premium Package ($2,200), Tech Package ($3,150) and the Lighting Package ($1,900) on top of any other box we could check. The total, after the $925 destination and handling charge: $66,749.
That's a fair price to us because it's free. Head on over to the 4 Series playpen and see what kind of damage you can do.