LEGO Technic Ferrari FXX K (42212) review

LEGO Technic swaps studs for beams, pins and gears, and the Ferrari FXX K (42212) is an affordable way in. For $64.99 on LEGO.com you get 897 pieces and a model with working parts: LEGO lists opening butterfly doors, an opening hood, a V12 engine with moving pistons under an opening cover, and a differential you can try out. That makes it a hands-on lesson in how a car's drivetrain turns, which is why LEGO frames it as a STEM toy. It is rated 10+, and the instructions are also available in the LEGO Builder app, where builders can zoom and rotate each step. Technic's 18+ supercars run up to $449.99 on LEGO.com, so this is a low-cost way to try the same kind of mechanical build. What you give up is play value: there are no figures or scenery, and a child who wants stories to act out will prefer a City or Friends set. Builders new to Technic may need a parent for the gear steps.

Who it is for

car fans aged 10 and up who want to see how a car works

Price

$64.99 on LEGO.com US.

Ferrari FXX K $64.99
Quoted from the vendor pricing page on November 13, 2026.

Key features

• 897 pieces, rated for ages 10+
• Opening butterfly doors and opening hood
• V12 engine with moving pistons under an opening engine cover
• Working differential
• 3D building instructions in the LEGO Builder app

Strengths and weaknesses

• Strength: Mechanical functions teach how a drivetrain works
• Strength: $64.99 for 897 pieces
• Strength: Officially licensed Ferrari design
• Weakness: Technic beams and pins feel different from classic bricks, so first-timers may need help
• Weakness: No minifigures or play scene
• Weakness: Larger Technic supercars on LEGO.com cost up to $449.99

Key facts

• Set number: 42212
• Ages: 10+
• Pieces: 897
• Functions: Butterfly doors, V12 pistons, differential
• Theme: Technic

Where it ranks

LEGO Technic Ferrari FXX K (42212) is No. 4 in our Best Lego Sets verdict.