I guess you also need to consider how to wire up the horn (connect to a switch on the G27?) and also trigger the indicator cancellation (usually a pin on the underside of the wheel hub). Actually, you could connect all sorts of things to the buttons on the wheel, e.g. fog lights. Now that is cool

and their goes me thinking that you'd remove the whole wheel assembly from a car, put in the g27 section, use the shifter where a cars normally is ( as with the handbrake ) and have the best cockpit available...