I use an 'ard case
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Plus a Disklok
Full Cover Large Silver Car Security Disklok - Left Hand Drive - Festive Lights
Plus an Abus Granite heavy duty chain/padlock through front wheel parked on full lock
Plus security etched using a Land Rover kit from ISR
Retainagroup - Worldwide solutions for vehicle & property security
Plus security bonnet hinges with M6/M8 shear nuts
GMB Bonnet Security Hinges
Plus immobiliser, alarm. Often overnight my wife's car will be parked close behind it on the drive which is covered by motion sensitive security lights.
I love my Landy and am keen to keep it!
Hope that helps?!