Fiat Phylla Concept

Concept Cars 27 May 2008
Fiat Phylla Concept

The Phylla Concept is an experimental urban vehicle which showcases many environment friendly technologies such as electric propulsion and photovoltaic panels. It was developed by CRF (Centro Ricerche Fiat) and designed by Turin-based schools IED and IAAD.

Phylla ConceptThe goal of the ‘Phylla’ project was to create an environment friendly urban car capable of achieving a cost per km value 10 times lower than a conventional gasoline-powered production model.

Such a car would be a optimal solution both for personal urban mobility and for car/van sharing systems in cities or limited environments like airports, stations, etc.

The vehicle structure is a so-called split-frame (passenger cabin separated from the frame), which enables to use different body styles on the same platform.

The name Phylla means ‘leaf’ in ancient Greek and communicates its ability of converting solar light into energy.

Phylla is fully recyclable, uses solar energy thanks to its photovoltaic cells and adopts solutions that minimize the energy consumption (active aerodynamics and ultra efficient tires).

Phylla - chassis Phylla Concept - layout

The vehicle was conceived for the electric traction so its layout design was not influnced by the presence of a conventional combustion engine and related components.


The exterior design is the result of the efforts of Turin-based design schools IED (Istituto Europeo di Design) and IAAD (Istituto di Arte Applicata e Design) and the Advanced Design department at CRF (Centro Ricerche Fiat).

Phylla ConceptBoth IED and IAAD presented two 1:4 scale models selected among the project of their Master students.

The Advanced Design department at CRF has taken the most significant design elements of these projects and used them to create the final 1:1 scale model.

Other design teams have worked on the technical and technological aspects of the project.

The design goal was to research a modern styling language, combined with the ample freedom allowed by the innovative technical layout.

The cabin volume is defined by an asymmetrical layout of pillars which countour the triangular glass surfaces that can be replaced by solar panels.

Phylla Concept - posterThe final effect is that of a modern veranda architecture. Inside, the only "mechanical" element is the steering column.

The asymmetrical layout also helps in offering a better visibility to the driver, especially when parking – and contributes to create a new visual perception of the car, which changes depending on the observer’s point of view.

Phylla has a modular architecture which will allow for easy experimentation of different energy sources (supercaps and Fuel Cells) to be used in conjunction with the batteries.


The project was accomplished through the cooperation of several partners:

Other partners include Novamont, Consorzio Proplast, Sagat,
ENECOM, Sydera and Bee Studio.

Phylla Concept – Technical Specifications

Vehicle Overview
Vehicle Segment

City Car Sub A

Number of seats



1980 mm


2995 mm


1618 mm

Front/rear overhangs

530 mm / 485 mm


1500 mm

Trunk volume [2+2 p]

142 lt

Roof luggage capacity [2p]

584 lt

Weight and performances

750 kg (included batteries 150kg)

Weight/Power ratio

10,2 kg/CV

Weight distribution front/rear


0-50km/h sprint

6 sec.

Top speed

130 km/h

Consumption (ECE cycle)

9,6 kWh/100km

Range (ECE  cycle)

145 km (Lithium-ion)
220 km (Lithium Polymers)

Photovoltaic range

12-18 km/day

Home recharge time

Max 4h  @ 4,5kW
Max 5h  @ 3kW



Front section

2,12 m2





Nominal output

27 kW

Peak output

54 kW

Suspension front/rear

Double wishbone with push rod

Braking system

4 discs regenerative braking

Stability active control

4 independent wheels



Front tires


Rear tires


Body & Interiors
Vehicle structure




Body construction

Metal-plastic hybrid


Natural and customizable




Bio materials

Photovoltaic cells

340W (on-board generated power)

Fuel Cell system

1kW (on-board generated power)


Lithium-ion or Lithium Polymer



(Source: Regione Piemonte via EcoBlog)

Image Gallery

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