Fuel consumption: 14 of 14 variants rated.
| # | Variant | Year | Body | Fuel | Fuel consumption |
|---|---|---|---|---|---|
| 1 | Chrysler 300C Touring HEMI 6.1 V8 SRT8 | 2006 | Wagon | Petrol | 14.0 l/100km (20.2 mpg UK · 16.8 mpg US) |
| 2 | Chrysler 300C HEMI 6.1 V8 SRT8 | 2006 | Sedan | Petrol | 14.0 l/100km (20.2 mpg UK · 16.8 mpg US) |
| 3 | Chrysler 300C Touring HEMI 5.7 V8 AWD | 2004 | Wagon | Petrol | 13.2 l/100km (21.4 mpg UK · 17.8 mpg US) |
| 4 | Chrysler 300C Touring HEMI 5.7 V8 | 2004 | Wagon | Petrol | 12.5 l/100km (22.6 mpg UK · 18.8 mpg US) |
| 5 | Chrysler 300C HEMI 5.7 V8 | 2004 | Sedan | Petrol | 12.3 l/100km (23.0 mpg UK · 19.1 mpg US) |
| 6 | Chrysler 300C Touring 3.5 V6 AWD | 2004 | Wagon | Petrol | 11.9 l/100km (23.7 mpg UK · 19.8 mpg US) |
| 7 | Chrysler 300C Touring 3.5 V6 | 2004 | Wagon | Petrol | 11.3 l/100km (25.0 mpg UK · 20.8 mpg US) |
| 8 | Chrysler 300C Touring 2.7 V6 | 2004 | Wagon | Petrol | 11.2 l/100km (25.2 mpg UK · 21.0 mpg US) |
| 9 | Chrysler 300C 3.5 V6 | 2004 | Sedan | Petrol | 11.1 l/100km (25.4 mpg UK · 21.2 mpg US) |
| 10 | Chrysler 300C 2.7 V6 | 2004 | Sedan | Petrol | 10.8 l/100km (26.2 mpg UK · 21.8 mpg US) |
| 11 | Chrysler 300C Touring 3.0 CRD Signature Series | 2010 | Wagon | Diesel | 8.3 l/100km (34.0 mpg UK · 28.3 mpg US) |
| 12 | Chrysler 300C Touring 3.0 CRD | 2005 | Wagon | Diesel | 8.3 l/100km (34.0 mpg UK · 28.3 mpg US) |
| 13 | Chrysler 300C 3.0 CRD Signature Series | 2010 | Sedan | Diesel | 8.1 l/100km (34.9 mpg UK · 29.0 mpg US) |
| 14 | Chrysler 300C 3.0 CRD | 2005 | Sedan | Diesel | 8.1 l/100km (34.9 mpg UK · 29.0 mpg US) |