2011 BMW 1-series Updated with Single-Turbo N55 Inline-6, Dual-Clutch Transmission

New BMW 335is Coupe and Convertible with 320HP Twin-Turbo Six Officially Revealed

First Drive: 2011 BMW 135i Coupe

Has BMW Downgraded the 135i & 335i? - BimmerFile

The Definitive Guide To The BMW N55 Engine - Common Faults, Tech Specs, & Upgrades

2010 BMW 1 Series 135i Sport E82 Auto MY10.5

Officially announced changes to the 135i for 2011 (+ wallpapers) - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

Car & Driver Review - 2011 BMW 335i Sedan - Two turbos are not better than one

BMW unveils single turbo N55 six-cylinder engine for new 5-series GT

Tested: 2011 BMW 335i Sedan

2012 BMW 1-Series LCI (facelift) Official Thread (Photos, Wallpapers, Specs, Videos) - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

BMW 5 Series (F10) - Wikipedia

2011 BMW 335is Review Editor's Review, Car News

BMW Introduces Dual Clutch Transmission For 1-Series

2011 BMW 135 for Sale - Autoblog