Yes it is very possible. I did it years ago I actually got 52 miles per gallon and it was a carbed engine also.
50 mpg = 21.3 kpl
around 10 mpg. it all depends on how and where you drive it
50 MPG
The EPA mileage estimate for the 2007 Lexus IS-350 is 19 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2013 Lexus IS-350 is 19 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2009 Lexus IS-350 is 18 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2010 Lexus IS-350 is 18 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2011 Lexus IS-350 is 20 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2012 Lexus IS-350 is 19 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2006 Lexus IS-350 is 19 mpg in the city, 26 mpg on the highway.
The EPA mileage estimate for the 2008 Lexus IS-350 is 18 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2014 Lexus IS-350 is 19 mpg in the city, 28 mpg on the highway.