VW is is introducing the most fuel efficient versions of the Volkswagen Scirocco and Passat CC which have received the BlueMotion Technology and which also promise a considerable drop in CO2 emissions.
The entry level 2.0-litre engine which packs 140 PS on the Volkswagen Scirocco BlueMotion which is available with a six-speed manual or optional six-speed DSG gearbox, comes with Stop/Start technology and bettery recuperation systems that lower consumption figures from 55.4 mpg to 62.8 mpg (51.4 to 57.6 DSG) and emissions from 134 g/km to 118 g/km (145 to 129 DSG).
As far as the Volkswagen Passat CC BlueMotion, the 2.0-litre TDI 140 PS engine from under the bonnet is now able to return consumption figures of 60.1 mpg instead of 50.4 mpg, with CO2 emissions lowered from 146 g/Km to 125 g/Km.
Further details as well as pricing regarding the Volkswagen Scirocco and Passat CC BlueMotion can be found in the release below the jump. 
Volkswagen press release :
The cleanest and most fuel efficient versions of the Scirocco and
Passat CC yet produced have been unveiled in the form of BlueMotion
Technology models.
As with all of Volkswagen’s BlueMotion Technology vehicles, the new
Scirocco and Passat CC variants combine efficiency with comfort and
refinement to create cars that deliver greater economy and fewer
emissions, yet which remain conventional to drive, service and maintain.
All entry-level Scirocco and GT trim models with the 2.0-litre 140 PS
engine now feature BlueMotion Technology modifications including
Stop/Start and battery regeneration systems to help to create the
cleanest and most fuel efficient Scirocco to date.  The models,
available with a six-speed manual or optional six-speed DSG gearbox,
offer savings through increased fuel economy, improved from 55.4 mpg to
62.8 mpg on the combined cycle (51.4 to 57.6 DSG), and lower emissions,
down from 134 g/km to 118 g/km (145 to 129 DSG) to allow all BlueMotion
Technology Sciroccos to drop two tax brackets over previous models.
Volkswagen has also announced revisions to the 2.0-litre TDI 170 PS
engine fitted to the Scirocco GT, which result in fuel economy figures
improving to 55.4 mpg from 53.3 mpg (50.4 to 51.4 DSG) and CO2 emissions reducing from 139 to 134 g/km (147 to 144 for DSG) .  
The Passat CC line-up has also been updated and sees BlueMotion
Technology models join the range in place of existing diesel versions. 
As with the Scirocco range, the new additions to the Passat CC range
have been modified to optimise efficiency and economy, with regenerative
braking and Start/Stop systems fitted to the four-door coupé for the
first time.
These revisions help the 2.0-litre TDI 140 PS Passat CC models achieve a combined 60.1 mpg, up from 50.4, and CO2
emissions are cut to just 125 g/km, down from 146 g/km.  The more
powerful 2.0-litre diesel engine in the range producing 170 PS also
boasts improved figures with economy up to 57.6 mpg (51.4 DSG) and
emissions down to 129 g/km (144 DSG).
The Scirocco and Passat CC BlueMotion Technology models are available
to order at Volkswagen Retailers now.  For more information please
visit www.volkswagen.co.uk.
Scirocco and Passat CC pricing

SEE ALSO:  Volkswagen T-Roc Cabrio enters production
Model CO2
(g/km)
VED
band
Fuel economy
(mpg, combined)
Price, £
(RRP OTR)
Scirocco        
2.0-litre TDI 140 PS
BlueMotion Technology 6spd (DSG)
118 (129) C (D) 62.8 (57.6) 21,500 (22,800)
GT 2.0-litre TDI 140 PS
BlueMotion Technology 6spd (DSG)
118 (129) C (D) 62.8 (57.6) 22,680 (23,980)
GT 2.0-litre TDI 170 PS 6spd (DSG) 134 (144) E (F) 55.4 (51.4) 23,440 (24,755)
Passat CC        
CC 2.0-litre TDI 140 PS
BlueMotion Technology (DSG)
125 (139) D (E) 60.1 (53.3) 23,555 (24,895)
GT 2.0-litre TDI 140 PS
BlueMotion Technology 6spd (DSG)
125 (139) D (E) 60.1 (53.3) 24,970 (26,310)
GT 2.0-litre TDI 170 PS
BlueMotion Technology 6spd (DSG)
129 (144) D (F) 57.6 (51.4) 25,850 (27,205)
Source: Volkswagen