[K.l.r]

Anyone interested as I may get my self http://www.ultra-gauge.com/ultragauge/

 

[K.l.r]

Or this http://m.ebay.co.uk/itm/261868138285

 

[Geo]

You could use this:

http://torque-bhp.com/

Great on Android and you can configure lots of gauges. Use it with a ODB Bluetooth device from Ebay.

 

[XzinkX]

Not too keen to be honest, I would rather retro-fit one if I had a Corsa without a trip computer.