Find the 10 most fuel economical, fastest, environmentally friendly (CO2 emissions), expensive cars in our database of nearly 10,000 vehicles on this page. Adversely, find out the thirstiest, most polluting vehicles too! Click on one of the links below to show the listings.

Top 10 Cars With Highest Fuel Efficiency

1 - Smart Fortwo 2dr coupe 0.8 cdi Passion

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£8972
85 mph
19.8 secs
85.6 mpg
44 bhp
81 lb/ft
88 g/km

2 - Seat Ibiza 5dr estate 1.2 TDI CR 75 Ecomotiv SE Copa

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£15345
104 mph
14.6 secs
80.7 mpg
74 bhp
133 lb/ft
92 g/km

3 - Vauxhall Astra 5dr sports tourer 1.3 CDTi ecoFLEX ES

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£18995
108 mph
14.2 secs
68.9 mpg
94 bhp
140 lb/ft
109 g/km

4 - Lexus CT 5dr hatchback 200h SE-I

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£23485
113 mph
10 secs
68.9 mpg
134 bhp
105 lb/ft
96 g/km

5 - Fiat 500 3dr hatchback 0.9 Twin Air

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£12000
108 mph
11 secs
68.9 mpg
84 bhp
74 lb/ft
95 g/km

6 - Fiat 500 2dr convertible 0.9 Twinair Lounge S/S

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£15265
108 mph
11 secs
68.9 mpg
84 bhp
74 lb/ft
95 g/km

7 - Hyundai i10 5dr hatchback 1.0 Blue

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£9195
93 mph
14.8 secs
67.3 mpg
68 bhp
70 lb/ft
99 g/km

8 - Volvo C30 3dr hatchback 1.6 D2 ES

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£17690
121 mph
10.7 secs
65.7 mpg
113 bhp
199 lb/ft
114 g/km

9 - Citroen Nemo Multispace 5dr mpv 1.3 HDi 75 S/S

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£12095
94 mph
18.7 secs
65.7 mpg
74 bhp
140 lb/ft
113 g/km

10 - Toyota Prius 5dr hatchback 1.5 Hybrid T Spirit

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£21210
106 mph
10.9 secs
65.7 mpg
112 bhp
353 lb/ft
104 g/km

11 - Toyota iQ 3dr hatchback 1.0

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£9495
93 mph
14.7 secs
65.7 mpg
67 bhp
67 lb/ft
99 g/km

12 - Alfa Romeo Mito 3dr hatchback 1.3 JTDm 95 Lusso

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£14815
112 mph
11.6 secs
65.7 mpg
94 bhp
147 lb/ft
112 g/km

13 - Volvo V50 5dr estate 1.6 D2 ES

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£21045
121 mph
10.9 secs
65.7 mpg
113 bhp
199 lb/ft
114 g/km

14 - Volvo S60 4dr saloon 1.6 DRIVe (115) ES

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£23495
121 mph
10.4 secs
65.7 mpg
113 bhp
199 lb/ft
114 g/km

15 - Volvo S40 4dr saloon 1.6 D2 ES

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£19695
121 mph
10.8 secs
65.7 mpg
113 bhp
199 lb/ft
114 g/km

16 - Peugeot Bipper Tepee 5dr mpv 1.3 HDi 75 Outdoor

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£12895
99 mph
16.8 secs
65.6 mpg
74 bhp
140 lb/ft
113 g/km

17 - Peugeot 508 5dr sw 1.6 e-HDi 112 Access

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£20075
122 mph
11.9 secs
64.2 mpg
110 bhp
210 lb/ft
109 g/km

18 - Peugeot 508 4dr saloon 1.6 e-HDi 112 Access

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£19050
122 mph
11.9 secs
64.2 mpg
110 bhp
210 lb/ft
109 g/km

19 - Suzuki Alto 5dr hatchback 1.0 Cruz

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£6953
96 mph
13.5 secs
64.2 mpg
67 bhp
66 lb/ft
103 g/km

20 - Fiat Qubo 5dr mpv 1.3 Multijet 75 Active

Price:
Top Speed:
0-60:
Fuel Economy:
Horse Power:
Torque:
CO2 Emissions:
£11955
97 mph
16.5 secs
64.2 mpg
74 bhp
140 lb/ft
115 g/km