The Sonic7 is a modern alternative to the Lotus 7 clone, using the MK1 Ford Focus as a donor.

The Sonic7 was designed by Stuart Mills to cater for customers of Mills Extreme Vehicles (MEV) Ltd who liked the MEV Rocket but desired more bodywork and weather protection. The sharp modern styling created a stir in the kit car scene which, prior to the arrival of the Rocket and the Sonic7, had been dominated by 1960’s replicas.

The Sonic7 was designed around a bespoke lightweight tubular space frame chassis. Torsional rigidity testing revealed high levels of stiffness whilst the lightweight Glass-Reinforced Plastic (GRP) body panels remained unstressed. The overall styling was based upon the MEV Rocket’s slow curves. The Sonic7’s curves run up and out creating a very sleek, sharp, pleasing and yet unusual design. The original wooden pattern or buck for the body was made on the MEV Rocket chassis hence the wheelbase and track width remaining the same, but the Sonic7 chassis is made mostly from square tube to simplify fabrication.

If you are looking for something contemporary, fresh and distinctive then the Sonic7 is the car for you.

To view some of the many outstanding Sonic7s already on the road, please see our gallery.


The MK1 Ford Focus based Sonic7 is a lightweight car, which delivers breathtaking performance.

  • Lightweight space frame chassis
  • Fully adjustable double wishbone suspension
  • Engine options:
    • 1.6L, 1.8L or 2.0L Zetec
    • ST170 Duratec
  • Total built weight of approximately 600kg (depending on specification)
  • Expect 0-60 mph times of less than 5 seconds
  • Power to weight ratio:
    • over 200 bhp/ton from 1.8L Zetec
    • over 300 bhp/ton with tuned 2.0L Zetec or Duratec
  • Mid-engine, rear wheel drive
  • Approximately 40/60 front/rear weight distribution

Self Build

The following parts can be used from your MK1 Ford Focus donor:

  • Engine
  • Gearbox
  • Engine and gearbox mounts
  • ECU and engine bay wiring harness
  • Exhaust manifold and catalytic converter
  • Gear change cables
  • Driveshafts
  • Front hubs
  • Rear brake discs and calipers
  • Wheels and tyres
  • Radiator and cooling fan (although VW Polo radiator recommended)
  • Cooling hoses
  • Coolant expansion tank
  • Brake/clutch fluid reservoir
  • Steering column and switches
  • Fuel pump and fuel gauge sender
  • Horn
  • Number plate lights and side repeaters
  • Various nuts, bolts and other fixings

Expect a build time of approximately 120 hours.

If you require any further information please contact us.