While it's true that convertibles have lower mpg ratings than coupés or sedans, European marques have been installing efficient powertrains and even diesel engines, which seemed a heresy because of rattles, noises and fumes. Fuel economy has also been improved with the "CC"s.
Convertibles are not the most Cx efficient vehicles in the world, and with the top up, air always found its way inside making a "parachute effect" which added extra drag to the car. With metal tops, the problem has been partially solved, although they carry extra weight. They also add safety against robbery for owners, since cloth tops are really easy to open with a knife.
Most of these cars are, then, diesels, and most of them have factory-installed anti-particullate filters. You will also notice that some automakers use the same engines. That's the case of Ford/Psa, Saab/Opel, VW/Audi. And you have tops of every kind, from retractable to cloth.
The picture shows #15, the Mitsubishi Colt CZC. Find the rest of the list after the jump.
|Model||l/100||mpg (US)||Engine Size||Fuel||HP||0-60 mph||Price||Notes|
|Mitsubishi Colt CZC 1.5||6,6||35,9||1.5 liter||Gasoline||109||10.5 sec||17490||Retractable roof|
|Audi A4 Cabriolet 2.0 TDI RPF||6,4||37||2 liter||Diesel + APF||140||10.4||36400|
|Saab 9-3 Cabriolet 1.9 TiD Linear RPF||6,3||37,6||1.9 liter||Diesel + APF||150||10.4||36000|
|BMW 325d Cabriolet RPF||6,2||38,2||3 liter||Diesel + APF||197||7.9||46450|
|VW Eos 2.0 TDI RPF||6||39,4||2 liter||Diesel + APF||140||10.3||31000|
|Peugeot 307 CC HDi FAP 135 Sport||6||39,4||2 liter||Diesel + APF||136||10.3||28550||Retractable roof|
|Opel Astra TwinTop 1.9 CDTI Edition RPF||6||39,4||1.9 liter||Diesel + APF||150||10.2||29650||Retractable roof|
|Daihatsu Copen||6||39,4||1.3 liter||Gasoline||87||9.5||17660||Retractable roof|
|Ford Focus Coupé-Cabriolet 2.0 TDCi RPF Trend||5,9||40,1||2.0 liter||Diesel + APF||136||10.3||27950||Retractable roof|
|Renault Mégane Coupé-Cabriolet 1.9 dCi FAP Dynamique||5,8||40,8||1.9 liter||Diesel + APF||130||9.6||27200||Retractable roof|
|VW New Beetle Cabrio 1.9 TDI||5,5||43||1.9 liter||Diesel||105||12.0||24750|
|Peugeot 207 CC HDi FAP 110 Filou||5,2||45,5||1.6 liter||Diesel + APF||109||10.9||21000||Retractable roof|
|Citroen C3 Pluriel HDi 70 Style||4,7||50,4||1.4 liter||Diesel||68||16.1||18950||Removable top|
|Opel Tigra TwinTop 1.3 CDTI||4,6||51,4||1.3 liter||Diesel||70||15.5||19130||Retractable roof|
|smart fortwo cabrio 0.8 cdi pure RPF||3,3||71,7||0.8 liter||Diesel + APF||45||19.8||14140|
Please note that the comma in the two first columns denotes the decimal separation. Also, to obtain the mpg figures, l/100 has been converted using 1 gal = 3.81 liters, 1 mile = 1.61 km APF denotes Anti Particullate Filter.
Here's a picture of the winner: