Looking at the table of European emission standards
http://en.wikipedia.org/wiki/European_emission_standards,
Lotus has to substitute the Toyota 2ZZGE engine (Euro 4) for a newer one prior to 1st January 2011.
The table claims that light commercial vehicles (<1305 kg) have to comply with Euro 5 standards from September 2009 on. New vehicles already in production get a prolongation until 2011 at the latest.
This would mean that we will probably see the new Elise / Exige variants next year.
Just thinking out lout.
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