Cars with the lowest real-world fuel consumption: diesel hybrids

Engines that use the least fuel on the road, measured by on-board meters.

#	Model and engine	cars	Official (WLTP)	Real world	Gap
1	Kia Sportage Diesel hybrid · 100 kW (136 hp)	2,669	5.2	5.6	+9%
2	Mercedes-Benz C-Class Diesel hybrid · 120 kW (163 hp)	17,024	4.8	5.6	+18%
3	BMW 3 Series Diesel hybrid · 90 kW (122 hp)	1,653	4.9	5.7	+16%
4	BMW 3 Series Diesel hybrid · 100 kW (136 hp)	779	4.9	5.7	+16%
5	Audi A4 Diesel hybrid · 100 kW (136 hp)	4,807	4.7	5.7	+21%
6	BMW 1 Series Diesel hybrid · 110 kW (150 hp)	616	4.4	5.7	+30%
7	BMW X1 Diesel hybrid · 110 kW (150 hp)	8,343	4.9	5.9	+19%
8	Audi A4 Diesel hybrid · 120 kW (163 hp)	12,854	4.9	5.9	+20%
9	MINI Countryman Diesel hybrid · 110 kW (150 hp)	930	4.8	5.9	+25%
10	BMW 3 Series Diesel hybrid · 110 kW (150 hp)	13,183	4.9	6.0	+20%
11	Audi A5 Diesel hybrid · 120 kW (163 hp)	2,405	4.9	6.0	+21%
12	Mercedes-Benz C-Class Diesel hybrid · 147 kW (200 hp)	43,781	4.9	6.0	+22%
13	Mercedes-Benz E-Class Diesel hybrid · 145 kW (197 hp)	7,796	5.1	6.0	+19%
14	Mercedes-Benz CLE-Class Diesel hybrid · 145 kW (197 hp)	2,800	4.8	6.0	+25%
15	Volvo V60 Diesel hybrid · 145 kW (197 hp)	14,407	5.6	6.1	+8%
16	BMW X2 Diesel hybrid · 110 kW (150 hp)	1,213	4.9	6.1	+24%
17	Ford Kuga Diesel hybrid · 110 kW (150 hp)	2,354	5.0	6.1	+23%
18	BMW X1 Diesel hybrid · 145 kW (197 hp)	6,760	5.0	6.2	+23%
19	BMW 5 Series Diesel hybrid · 110 kW (150 hp)	583	4.9	6.2	+27%
20	BMW 3 Series Diesel hybrid · 140 kW (190 hp)	31,999	5.2	6.3	+20%
21	BMW 2 Series Diesel hybrid · 140 kW (190 hp)	818	4.8	6.3	+32%
22	Mazda CX-60 Diesel hybrid · 147 kW (200 hp)	3,075	5.0	6.3	+27%
23	Volvo V90 Diesel hybrid · 145 kW (197 hp)	5,075	5.8	6.4	+11%
24	Mercedes-Benz E-Class Diesel hybrid · 147 kW (200 hp)	13,943	5.3	6.4	+22%
25	BMW 4 Series Diesel hybrid · 140 kW (190 hp)	13,640	5.1	6.4	+26%
26	Audi A6 Diesel hybrid · 120 kW (163 hp)	2,024	5.4	6.5	+20%
27	Volvo V60 Cross Country Diesel hybrid · 145 kW (197 hp)	12,420	6.0	6.5	+9%
28	Mercedes-Benz GLC-Class Diesel hybrid · 145 kW (197 hp)	37,418	5.4	6.5	+22%
29	Mazda CX-60 Diesel hybrid · 183 kW (249 hp)	891	5.3	6.6	+25%
30	BMW 5 Series Diesel hybrid · 140 kW (190 hp)	15,843	5.3	6.6	+25%
31	BMW 5 Series Diesel hybrid · 145 kW (197 hp)	9,477	5.5	6.6	+20%
32	Audi A4 Diesel hybrid · 150 kW (204 hp)	16,621	5.6	6.7	+19%
33	BMW X3 Diesel hybrid · 110 kW (150 hp)	1,904	5.7	6.7	+18%
34	Volvo V90 Cross Country Diesel hybrid · 145 kW (197 hp)	6,548	6.3	6.7	+6%
35	Audi A5 Diesel hybrid · 150 kW (204 hp)	4,319	5.5	6.7	+22%
36	Audi Q5 Diesel hybrid · 120 kW (163 hp)	4,947	5.4	6.7	+25%
37	Mazda CX-60 Diesel hybrid · 187 kW (254 hp)	7,571	5.3	6.7	+28%
38	Mercedes-Benz C-Class Diesel hybrid · 195 kW (265 hp)	8,986	5.3	6.8	+28%
39	Audi A6 Diesel hybrid · 150 kW (204 hp)	17,534	5.7	6.9	+21%
40	BMW X3 Diesel hybrid · 140 kW (190 hp)	27,418	6.0	7.1	+19%
41	Volvo S90 Diesel hybrid · 173 kW (235 hp)	1,430	5.9	7.1	+21%
42	Volvo XC60 Diesel hybrid · 145 kW (197 hp)	68,852	6.2	7.1	+15%
43	BMW X4 Diesel hybrid · 140 kW (190 hp)	9,216	5.9	7.1	+22%
44	BMW 3 Series Diesel hybrid · 210 kW (286 hp)	6,004	5.7	7.2	+26%
45	Mercedes-Benz E-Class Diesel hybrid · 195 kW (265 hp)	2,152	6.2	7.2	+16%
46	BMW 4 Series Diesel hybrid · 210 kW (286 hp)	2,322	5.7	7.2	+27%
47	Jaguar E-Pace Diesel hybrid · 120 kW (163 hp)	1,300	6.6	7.3	+10%
48	BMW X3 Diesel hybrid · 145 kW (197 hp)	745	6.0	7.3	+22%
49	Mercedes-Benz GLC-Class Diesel hybrid · 198 kW (269 hp)	5,167	5.8	7.3	+27%
50	Volvo V90 Cross Country Diesel hybrid · 173 kW (235 hp)	1,613	6.2	7.3	+18%

Engines with at least 500 cars in the data. Plug-in hybrids have their own page. Hybrid includes mild hybrids (48 V) as registered by the manufacturer.