But what type of diesel engine is the smallest, and what brands can you pick one up from? Known for their lightweight design ...

Toyota and Isuzu agreed last fall to investigate building small diesel engines ... is a 1.6-liter engine with an aluminum cylinder block for use in Toyota vehicles sold in European markets.

The upcoming Bharat Stage 6 (BS-VI) emission norms would make small cars with diesel engines a lot more costlier, he said. The higher cost could hit sales of small diesel cars the most, he added.

Despite this undeniable fact, Toyota has requested a temporary suspension on its joint venture with Isuzu to create small diesels for the EU market. The first expected engine was to displace 1.6 ...