Racing car toy with pull-back action. The LEGO Technic Mercedes-AMG F1 W14 E Performance Pull-Back model is a fun racing car gift for kids. Imagine what it's like to be in the driving seat of a real Mercedes F1 racing car. Build Together Cars Sports Vehicles. Pull-back action. Pull back to send the car racing. Realistic details. The eye-catching design is inspired by the real-world car. Authentic livery. Sticker details create a realistic finish. Enter a digital world of building. Builders can zoom in, rotate sets in 3D and track their progress using the fun, intuitive LEGO Builder app. Ignite new passions.