This is undoubtedly the best 4 - litre version of the current engine architecture. (evo.co.uk)
There will, however, be a new 4.0 - liter V - 8 built off the same engine architecture — in essence it shares cylinder heads with the turbocharged four - cylinder. (automobilemag.com)
The all - new turbocharged engine architecture is available in various power levels, and fuel efficiency has improved dramatically across the range. (porscheofsouthshore.com)