Volvo announced at the Paris Motors Show that the next step for them will be diesel hybrids, which up until now have not been very popular.
The diesel hybrids will first appear in Volvo's larger sedans, crossovers, and SUVs. The system consists of a front-mounted, front-wheel drive diesel powertrain and a rear-mounted, rear-wheel drive electric propulsion system. It has electric-only capability at low speeds. Magnus Jonsson, Volvo's senior vice president of R&D, said that plug-in hybrid models will come "very quickly" after the first hybrid models become available.
Source: thecarconnection