With laser focus you slide behind the wheel. Nothing matters but the speed! Take control of this cool LEGO® Technic Top Gear Rally Car and get ready for the drive of your life! Controlled using the LEGO Technic CONTROL+ App, you'll discover a host of neat functions, including realistic sounds and real-time feedback. Take on challenges, earn achievements and access inspirational Top Gear content. Let race car fans take on a driving challenge with this LEGO® Technic app-controlled Top Gear Rally Car (42109). It's operated via a smart device with 3 screens. Go to LEGO.com/devicecheck for compatible devices. This toy rally car model is controlled via the LEGO® Technic CONTROL+ app and powered by an advanced Smart Hub with 1 XL motor and 1 L motor for a more immersive play experience and authentic movements. Build the car. Download the app. Get ready for action. With multi-function control, drivers can go forward, reverse, steer, accelerate, brake, or play sound effects and get real-time feedback! Looking for Top Gear gifts or LEGO® gifts? Racing fans aged 9+ will love this toy building set. There are probably quite a few grown-up Top Gear fans who'd love to give this motorsport icon a spin too! At over 26cm long, 10cm high and 14cm wide, this motorized toy car is the perfect size for driving or for display. Please note: this set is not compatible with LEGO® Power Functions systems. Are batteries required? Building can start without batteries but to enjoy the full power of digital play with the app controls, you'll need to pop 6 x AA 1.5V batteries. Top Gear fans live life in the fast lane. So great news! Getting started with this app-controlled toy is super-fast as full, easy-to-follow instructions are included in the box. Discover an exciting world of engineering toys for kids and adults with LEGO® Technic. With cool vehicle designs and awesome functions, these toy building sets deliver fun long after the model is built. LEGO® model toys meet the highest industry standards, ensuring every building kit is consistent with pieces that connect easily every time. LEGO® Technic plastic model kits are thoroughly tested to make sure every one of these unique toys meets the highest global safety and quality standards.