Rising fuel costs coupled with a focus on emission control have resulted in more and more large sedans being powered by small engines that are being tweaked to deliver as much as their larger count
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/smaller-engines-counter-fuel-prices
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/automobiles
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/auto-industry
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fuel-pricing
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maruti-udyog
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/petrol
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel