I believe it was a mistake. The total number of Wrights
reflected in the press release is 1,415 (150 + 300 + 550 + 415),
but when I did the calculation reflected in the press release (150
+ 300 + 565 + 415), it added up to 1,430.
The mistake lies in the Volvo press release. Take a look at
Wrightbus'...
This latest contract, which is due for delivery between 2015 and
2017, follows in the footsteps of three previous orders which have
already seen a total of 1,015 similar vehicles enter service with
SBS Transit since 2010. Deliveries of the first tranche of
150 vehicles were completed in September 2011, followed by 300 more
in January 2013 and a further 565 which will be fully in service by
2015.