Νομίζω ότι πρόκειται γιά τις διόδους λυχνίες οι οποίες είναι ενσωματωμένες στο τιμόνι των αγωνιστικών αυτοκινήτων F1 και αφορουν κυρίως στον αριθμό στροφών του κινητήρος ανά λεπτό, την πίεση των λιπαντικών, την λειτουργία τού κιβωτίου ταχυτήτων κλπ. Κατατοπιστικές φωτογραφίες στους αναφερόμενους ιστοτόπους :

1. http://www.f1fanatic.co.uk/2011/04/22/steering-wheels/

'' In addition to the various controls, drivers also receive information via the lights on the steering wheel.

On the Sauber steering wheel the displays are:

RPM indicator (upper LEDs)
FIA flag signals (left and right LEDs)
Gear selection (centre LED)
Speed and sector times / MFRS options (left and right screens)''


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Note added at 4 days (2011-05-22 00:21:09 GMT)
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2." We have gathered together as many of the modern style wheel designs that we could find and put a date to, to demonstrate the UI pattern. What is clear is that there is no clear accentuation of features (color, size) by how often the are used, merely by position. Even if drivers like Hamilton are experts and fully familiar with the UI, there is a tiny percentage chance of error. Our guess is that this trend in car UI would be a mistake if it filters through to everyday cars, and that F1 cars will revert to a more simple UI over time. "

http://www.oobject.com/category/formula-1-user-interfaces/