Originally, the B7RLE featured the D7C 6-cylinder, 7.3-litre diesel engine with a turbocharger and intercooler, producing 250 or 275 bhp and meeting the Euro III emission standard.

The B7RLE appealed most to operators in both United Kingdom and Ireland, with whom the B7L proved unpopular due to its longitudinal rear engine arrangmenet.

[8][9] Transport for Brisbane took delivery of a total of 554 Volgren-bodied Volvo B7RLEs with Volgren bodywork from 2009 onwards as part of a 12-year contract between Brisbane City Council, Volvo Buses and Volgren, with the final assembly of these buses taking place at a facility in Eagle Farm as part of the contract.

[citation needed] During 2018, 62 B7RLEs with Volgren Optimus bodies were delivered CDC NSW, initially for use on long-term rail replacement services related to the Sydney Metro Northwest rapid transit project from October 2018 onwards.

The entire fleet of B7RLEs in China mainland are equipped with Volvo D7B260/D7E290EC01/D7E290EC06 Engines paired with ZF EcoMat 6HP554C transmission.

In 2003, Huangbus (Lok Ma Chau - Huanggang shuttle bus service) purchased five B7RLEs with Jit Luen JL-08 bodies and D7E-290 7142cc engines.

Twenty Volvo B7RLEs with DesignLine bodies were delivered to NZ Bus, then owned by Infratil, for service in Auckland in May 2007.

Starting July 2016, RRCG Transport launches "P2P (Point-to-Point) Premium Bus Service" for Alabang Town Center to Greenbelt 1, serving 3 units for King Long XMQ6127G with Sunwin SWB6128 front and rear mask, built by the Philippine-based Autodelta Coach Builders, Inc.

[21][better source needed] Singapore has B7RLEs running in Sentosa featuring bodywork by Liannex Corporation, either in a city bus configuration for its internal shuttles, or as open-top double-decker buses.

A Euro IV demonstrator Volvo B7RLE with Soon Chow bodywork was delivered to SBS Transit in December 2007, initially for a one year trial.

[22] An air-conditioned Volvo B7RLE, nicknamed the 'luxury bus', was delivered for trial service primarily in the business districts of Colombo with the Sri Lanka Transport Board in 2011.