The Savage XL - Extra Large Size and Mega Power! Check out the new addition to the Savage line-up! The Savage XL is the extra-large, extra-tough and extra-powerful big brother to the Savage X monster truck. For improved stability and handling, the Savage XL has a 55mm longer wheelbase and a 25mm wider track. With a longer wheelbase, wider stance and huge 5.9cc (.36 cubic inch) engine, the Savage XL is ready to rock and roll right out of the box. The HPI design team added strategically strengthened hop-up parts to tame the massive K5.9 power for unmatched durability. The Savage XL soaks up the rough stuff with ease because it's the biggest, toughest, and most powerful Savage ever!