Got $46,135 or more burning a hole in your pocket? Want to imagine what you could get if you did? Hit up the official BMW 1-Series M Coupe configurator at BMW USA.
You can play with all the options, including the three available exterior colors (Black Sapphire Metallic, Valencia Orange, and Alpine White), one choice of interior (Black Boston Leather with orange stitching), one choice of trim, two packages, and a half-dozen a la carte options.
The $2,400 Premium Package adds auto-dimming mirrors, lumbar support, BMW Assist with Bluetooth, power front seats with driver seat memory, and ambient lighting. The second package is the $2,700 Convenience Package, which includes navigation, rear park distance control, alarm system, keyless entry, and all the features of the Premium Package. Unfortunately it also adds the price of the Premium Package to the mix, meaning you can't get Nav without all of the other goodies--at least as the configurator sits now--which will cost you $5,100 in total.
Go play with it yourself, and see what you can come up with.