Emissões de CO₂: 19 de 33 variantes com dados.
Fiat Idea 1.4 16v Active lidera o ranking Fiat Idea por Emissões de CO₂, com 157 g/km.
Em 19 variantes classificadas, Emissões de CO₂ varia de 135 g/km a 157 g/km.
| # | Variante | Ano | Carroçaria | Combustível | Emissões de CO₂ |
|---|---|---|---|---|---|
| 1 | Fiat Idea 1.4 16v Active+1 | 2005 | Monovolume | Gasolina | 157 g/km |
| 2 | Fiat Idea 1.4 16v Dynamic+1 | 2005 | Monovolume | Gasolina | 157 g/km |
| 3 | Fiat Idea 1.4 16v Emotion+2 | 2005 | Monovolume | Gasolina | 157 g/km |
| 4 | Fiat Idea 1.4 16v Active Plus | 2005 | Monovolume | Gasolina | 157 g/km |
| 5 | Fiat Idea 1.4 16v Young | 2005 | Monovolume | Gasolina | 157 g/km |
| 6 | Fiat Idea 1.4 16v Dynamic Plus | 2005 | Monovolume | Gasolina | 157 g/km |
| 7 | Fiat Idea 1.4 16v Active | 2003 | Monovolume | Gasolina | 157 g/km |
| 8 | Fiat Idea 1.4 16v Dynamic | 2003 | Monovolume | Gasolina | 157 g/km |
| 9 | Fiat Idea 1.4 16v Dynamic Plus | 2003 | Monovolume | Gasolina | 157 g/km |
| 10 | Fiat Idea 1.4 16v Emotion | 2003 | Monovolume | Gasolina | 157 g/km |
| 11 | Fiat Idea 1.9 Multijet Dynamic | 2005 | Monovolume | Diesel | 146 g/km |
| 12 | Fiat Idea 1.9 JTD Dynamic Plus | 2005 | Monovolume | Diesel | 146 g/km |
| 13 | Fiat Idea 1.9 JTD Emotion | 2004 | Monovolume | Diesel | 146 g/km |
| 14 | Fiat Idea 1.3 Multijet 16v 70 Dynamic+1 | 2005 | Monovolume | Diesel | 135 g/km |
| 15 | Fiat Idea 1.3 Multijet 16v 70 Emotion+1 | 2005 | Monovolume | Diesel | 135 g/km |
| 16 | Fiat Idea 1.3 JTD 16v Active | 2003 | Monovolume | Diesel | 135 g/km |
| 17 | Fiat Idea 1.3 JTD 16v Dynamic | 2003 | Monovolume | Diesel | 135 g/km |
| 18 | Fiat Idea 1.3 JTD 16v Dynamic Plus | 2003 | Monovolume | Diesel | 135 g/km |
| 19 | Fiat Idea 1.3 JTD 16v Emotion | 2003 | Monovolume | Diesel | 135 g/km |