I noticed new Linea T-JET ARAI certified mileage is 15.7 KMPL and earlier Linea T-JET ARAI certified mileage was 14.6 KMPL (This is what I could get from google search). But I have not seen any info whether Fiat retuned their T-JET for better mileage. Anybody has any info on this one? or is it just a mistake in FIAT brochure?