I recommend you to use this picture of Lamborghini Gallardo Rainbow Dash as your desktop background. Basically, this picture has different resolution with current picture. But, in order to make it easy to apply as wallpaper, it was edited into HD resolution. So, if you want to get best resolution, just download it on original size.
Lamborghini Gallardo is a sports car built by Lamborghini from 2003 – 2013. The first generation Gallardo came with an even firing 5 litre 90 degree V10 (4961cc). The coupe update was released on 2005 with many changes to the car. The exhaust system was changed to a more sporty one, a new steering, the engine power was increased by 20 bhp to a maximum of 520 metric horsepower (382 kW; 513 hp).
Another types of Gallardo are:
Lamborghini Concept S, Gallardo Spyder, Gallardo Superleggera, Special edition Gallardo (Italian police cars, London Metropolitan Police), Gallardo SE, Gallardo Nera, Second Generation (LP 560-4), LP 560-4 Spyder, LP 570-4 Superleggera, LP 570-4 Spyder Performante, LP 550-2 Coupé, LP 550-2 AD, LP 550-2 Spyder, Gallardo LP560-4 Polizia, LP 550-2 Balboni, Gallardo LP 560-4 Gold Edition, Bicolore, LP 550-2 Super Trofeo, LP 570-4 Superleggera Nero Nemesis, LP 570-4 Superleggera Bianco Canopus Limited Edition, LP 550-2 Tricolore, LP 570-4 Super Trofeo Stradale, Singapore Limited Edition, and many more.
I hope that you will also browse for more Lamborghini cars on this site. Here are several best wallpaper with Lamborghini cars: