B on the bench Formula 1Ground effectPhoto-etch

Lotus Type 79
1978 · Mario Andretti

Tamiya’s 1/20 Grand Prix Collection kit of the ground-effect car that won the 1978 world championship, detailed with Tamiya’s photo-etched set.

[ 01 / BUILD LOG ]

Under the
bodywork.

The Lotus 79 was the car that made ground effect work. Shaped sidepods turned the whole car into an upside-down wing, and in 1978 it carried Mario Andretti to the Drivers’ Championship and Lotus to the Constructors’ title. In its black and gold livery it earned a nickname: Black Beauty.

This build is Tamiya’s 1/20 kit 20060, detailed with the matching Tamiya 12635 photo-etched parts set. The chassis is coming together first: the Ford-Cosworth DFV V8, gearbox and rear suspension, the riveted monocoque and fuel cell, and a cockpit with seat and harness in place.

The bodywork, which hides almost all of this, comes last. That makes these bench photos the only chance to see the detail underneath.

build progress 5 / 8 steps

From the bench photos, 24 July 2026 · 63%

  1. ✓

    Ford-Cosworth DFV engine

    Block, cam covers, injection trumpets and ignition

  2. ✓

    Gearbox and rear suspension

    Gearbox, springs and rear uprights

  3. ✓

    Monocoque and fuel cell

    Riveted aluminium tub with filler cap and fittings

  4. ✓

    Cockpit

    Seat, harness, steering wheel and bulkhead

  5. ✓

    Front suspension

    Rocker arms, uprights and brakes

  6. 7

    Bodywork and wings

    Black and gold livery, decals and clear coat

  7. 8

    Wheels and tyres

    Final assembly and onto the plinth

[ 02 / HIGHLIGHTS ]

Up close.

The frames that show the work best. Select any photo to step through the full set.

[ 03 / FRAMES ]

Every
frame.

All 4 photographs from the session, 24 July 2026, in the order they were taken.

next kit Massey Ferguson FE35 “Gold Belly”