To add to the detail posted by KK, this from First Kernow - behind the scenes.
'Our new Optare Solos are now being delivered to us.
53860 and 53251 were delivered on Wednesday
53861 and 53862 are due today
53860
Fleet Green
WK68 BSO
Optare Solo S/L 8.5m
53861
Fleet Green
WK68 BSU
Optare Solo S/L 8.5m
53862
Fleet Green
WK68 BSV
Optare Solo S/L 8.5m
53863
Fleet Green
WK68 BSX
Optare Solo S/L 8.5m
53864
Fleet Green
WK68 BSY
Optare Solo S/L 8.5m
53865
Fleet Green
WK68 BSZ
Optare Solo S/L 8.5m
53251
Atlantic Coaster
WK68 BTE
Optare Solo S/L 9.9m
53252
The Lizard
WK68 BTF
Optare Solo S/L 9.9m
53253
Atlantic Coaster
WK68 BTO
Optare Solo S/L 9.9m
53254
The Lizard
WK68 BTU
Optare Solo S/L 9.9m
53255
Atlantic Coaster
WK68 BTV
Optare Solo S/L 9.9m
53256
The Lizard
WK68 BTX
Optare Solo S/L 9.9m
53257
Fleet Green
WK68 BTY
Optare Solo S/L 9.9m
53258
Fleet Green
WK68 BTZ
Optare Solo S/L 9.9m
These will replace the following 12 members of the existing fleet...
42871/2/3/4/5/6
42942
43810
43878
53402
53403
53404
However, with a significant commitment to rail replacement between mid February and mid March, a number of the longer Darts will be covering for coaches on school and college contracts, so will be around for another 6 weeks or so.'