Powered by a 204bhp 2.5-litre V6 petrol engine, the IS 250 SR will accelerate from rest to 62mph in 8.1 seconds (8.4 with the optional six-speed automatic transmission) and progress to a top speed in excess of 140mph.
Three exterior colours are available: Velvet Black and Cadoxton Slate and Argento Ice metallic finishes. All are matched to Worcester Black interior fabric trim. The IS 250 SR is on sale from 19 May price £24,990 (manual) and £25,800 (automatic).