This may work.

Not only cars, also projects can be hybrid.  An upcoming theme in the last couple of years are waterfall-planned and agile-driven projects, or hybrid, if you like. A rule of the thumb seems to be that going hybrid makes sense when software development and infrastructure deployment are equally represented. A number of interesting blogs, articles, presentations and books are available, but preciously little can be found on show cases, experiences and lessons learned. Do you know of any more?