Start the strut course free, plus yearly and monthly plans. • The MacPherson strut course is free to start: all five lessons and the sway bar link job. • The Full Garage now comes three ways: pay once, yearly or monthly. • Get the print-quality parts diagrams by email. • Optional reminders to pick up a course where you left off, at most twice a week.

New: courses, and a car on the home screen. • Courses for seven systems, part of the Full Garage: five lessons on how each one works, then two workshop jobs, such as changing the front pads or bleeding the clutch. • Each job goes step by step: pick the next part, the tool, its size and the torque. Do it guided first, then on your own for stars. • An x-ray car on the home screen: tap a dot on it to open that system. • The courses are on the home screen too, with a Continue card for the one you've started. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

The Steering, rebuilt from the ground up. • Rack-and-pinion steering with an electric power-assist motor, from the steering wheel to the front wheels, in detailed real parts. • Turn lock to lock and watch the rack, tie rods and both front wheels follow. The inside wheel turns further than the outside one. • See the power assist at work: choose how hard you turn the wheel and how fast you're going, and watch how much the motor adds. • Tear it down stage by stage with torque specs, then build it back up and take the quiz. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

New: the Gearbox, the eighth system. • A five-speed manual gearbox in detailed real parts, from the clutch to the differential. • Start the engine and shift through all five gears and reverse. • Watch the synchros match the speeds before each gear locks in. • Tear it down stage by stage with torque specs, then build it back up and take the quiz. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

Small improvements and fixes. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

A new workshop, and a rebuilt strut. • Every system now stands in a real workshop. • The free MacPherson strut, rebuilt in full detail, brakes and driveshaft included. • Take it apart stage by stage, with real torque specs. • Hide the controls to see the whole model. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

Founding members, front and center. • Unlock the Full Garage by October 30 and get the Founder badge. • A welcome for founders, and a badge you can share. • Bug fixes and polish. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

A second suspension: the double wishbone. • A complete double-wishbone corner in detailed real parts, from both wishbones and the coilover to the driveshaft and brake. • Run the camber test, steer it lock to lock and tear it down stage by stage, with torque specs. • New build steps and quiz questions. • Founding members now get a Founder badge on the home screen. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

New app icon, plus bug fixes and UI fixes. Founding price until October 30: after that, the Full Garage price goes up. One purchase unlocks every system, including every future one.

Bug fixes and UI fixes.

The Clutch, rebuilt from the pedal to the flywheel. • A complete hydraulic clutch in detailed real parts: pedal box, master and slave cylinders, release bearing, pressure plate, disc and flywheel. • Press the pedal and watch the diaphragm spring flex and the disc stop while the flywheel keeps turning, then let it up slowly through the bite point. • Start the engine and find the bite point yourself. • Look inside, lift out any of nine systems and tear it down stage by stage, with torque specs. • New build steps and quiz questions for the clutch.

A fresh new look and two rebuilt systems. • New app icon, welcome and home screen. • Brakes: a complete front brake corner in detailed real parts. Run the brake test, wear the pads down and tear it down stage by stage. • Drivetrain: the CV axle, both joints and the open differential. Drive it, steer it and strip it down. • Suspension fixes and polish.

Bug fixes and performance improvements.

A brand-new Engine, modelled part by part.

Suspension, rebuilt. The free MacPherson strut corner is now a fully modelled assembly: a real tyre with tread and sidewall texture, a cast-alloy knuckle, forged control arm, anti-roll bar, drop link and drive axle, every part tappable with its own spec sheet. New Strut Tower part shows where the strut bolts into the body. The bump test, exploded view and Build mode all run on the new model, and taps now land on exactly the part you touch.