While both are competent CNG SUVs, there are some differences. The Maruti Brezza will be more fuel efficient, as we found out during our testing, but the Tata Nexon offers a properly usable boot space since its CNG tanks are placed under the boot floor. If you value efficiency and a stress-free ownership experience, go for the Maruti Brezza CNG, but if you want cargo space and more features, opt for the Tata Nexon CNG.

