Thank you, Allen. Welcome, everyone. Bob and I are going to walk through our full year and fourth quarter 2021 presentation outlining our recent performance and our outlook. To kick it off, I'd like to highlight the hard work our employees have put into building our business. Their contributions allowed us to reach levels of scale that seemed unattainable only a few years ago. I'd also like to thank our Board members and our investors for their ongoing support as we continue to grow and develop in a dynamic environment. Let's start on Slide 3. Before we dive into results, I wanted to highlight our recent hire of Tom Shortt, our new Chief Operating Officer. Tom joined us in January, already is rolling up his sleeves and helping us shape our long-term vision as we build out a robust operational system. Tom brings expertise from Walmart, where he served as Senior Vice President of Supply Chain for 3 years. During his time at Walmart, Tom focused on ecommerce supply chain, which is a great fit for us. Prior to Walmart, Tom served in senior leadership supply chain roles at Home Depot, ACCO Brands, Unisource, Fisher Scientific and Office Depot. I'm ecstatic to have him here on the team. Moving along to Slide 4. I want to step back and highlight our accomplishments in 2021. This year was a tremendous year of growth for us, not only in terms of units sold, but in the operational breadth of our business. We reached new markets, increased consumer sourcing to new heights and made new stage-setting acquisitions. In 2021, we delivered extraordinary triple-digit ecommerce unit growth. We matched strong demand with scaling operations across the entire transactional ecosystem, further validating our customers' enthusiasm for the Vroom model. We grew total revenues by nearly $2 billion year-over-year, more than doubling our business. Ecommerce gross profit per unit, or GPPU, increased 25% year-over-year for 2021. That profitability expansion reflects both improved Vehicle and Product margins as our teams worked hard to execute on our goals. We've surpassed our key supply chain targets for the year. We doubled our reconditioning centers by year-end to a count of 38 versus 19 at the end of 2020. We exited the year delivering over 60% of ecommerce deliveries with our own last mile program in the fourth quarter, exceeding our 50% target. We have also proven our ability to acquire units from consumers, leveraging marketing, conversion, pricing algorithms and delivery experience to exceed customer expectations. We're pleased that 76% of the retail units sold in the fourth quarter came directly from consumers, up from 40% in 2020. I would be remiss not to mention our acquisition of CarStory earlier in 2021 as we look back at the year. We successfully integrated this leading AI-powered analytics platform into our company, driving our pricing strategy forward with new data insights. This acquisition was instrumental during a time of exceptional vehicle pricing dynamics. More recently, we completed the acquisition of United Auto Credit Corporation, or UACC, beginning our transformation to fully captive lending. We also expanded our capital base to ensure future growth for Vroom. In June, we raised over $600 million through the issuance of convertible notes. We ended the year with over $1 billion in cash, excluding restricted cash, and recently expanded our floor plan financing availability to $700 million and extended the term to 2023. These steps have positioned us well for continued growth and investment. Now a few high-level comments on 2022. Our 2022 plan centers on improving the transaction holistically from a streamlined customer experience, new in-house financing capabilities and scaling logistics, which will help reduce volatility in our business and improve unit economics. We expect sequential profitability improvement as we move through the year. In the first quarter, we are already stabilizing and improving from December exit rate levels and expect these improvements to compound as we progress. We anticipate further tailwinds from captive financing and from alleviating medium-term capacity constraints. Now let's move to the Ecommerce business on Slide 5. In 2021, we sold over 74,000 units, more than double the units sold in the prior year. This strong growth was fueled by growing brand awareness in an exceptional demand environment, coupled with increasing capacity across our business. In turn, Ecommerce revenues increased 167% year-over-year to $2.4 billion as unit growth was compounded by a significant expansion in average selling prices, or ASPs. We attribute the increase in ASPs primarily to the extraordinarily heightened pricing environment for used vehicles in 2021. Ecommerce gross profit per unit grew 25% as Vehicle and Product GPPU expanded year-over-year. Vehicle GPPU increased nearly 30% as we benefited from improved pricing methodologies as well as more efficient reconditioning processes versus 2020. Our higher Product gross profit per unit is a result of strong execution of our product team as well as higher average loan balances. Let's take a deeper look at ecommerce unit trend for the year on Slide 6. Similar to our last earnings call, we are focusing on total ecommerce transactions. We define these as ecommerce units sold plus retail-grade remote consumer-sourced purchases and trade-ins. Transaction growth increased in absolute and relative terms in 2021, reaching a new high of 143,500. We more than doubled our unit sales in 2021, while our consumer-sourced units nearly quadrupled. Our increase in marketing investments in 2021 has paid off. We reached a record website visitation of more than 2.3 million average monthly unique visitors by the end of the year. We also increased our brand awareness by 50% year-over-year. More recently, you may have seen our advertisement on the Super Bowl, which will help us further build long-term brand awareness. Moving on to our supply chain operations on Slide 7, we exceeded our 2021 targets. Starting with reconditioning, we opened 19 new third-party reconditioning centers in 2021, with 8 new additions in the fourth quarter. This brings us to 38 total reconditioning centers, including our own facility, putting us well ahead of our initial target of 30 locations. Our efforts to expand reconditioning capacity in a competitive environment resulted in a 70% year-over-year increase in the fourth quarter. Still, we faced incremental reconditioning costs and constraints as the effect of labor shortages continued during the pandemic. In the immediate future, we will continue to address the evolving dynamics of our reconditioning capacity. Turning to our last mile program. Having already hit our last mile hub target for the year in the prior quarter, we exited the year with over 60% of ecommerce deliveries using this experience in the fourth quarter. This put us well ahead of our 2021 exit rate target of 50%. In 2022, we intend to expand our last mile experience as we work towards a long-term goal of 85% of deliveries by last mile. We realize you may have a few questions about the potential impact of the very recently announced acquisition of one of our reconditioning partners, who also host a number of our last mile hub locations. We are studying the situation and working on solutions that can include a combination of increased capacity with our third-party providers and expanded proprietary capacity. Given how new and fluid the situation is, there is not much more to say today. We expect to provide a more fulsome view of our approach at our Analyst Day presentation in the spring. Moving on to Slide 8. I want to talk about the customer experience. Recent transaction growth has increased the need for a more efficient, scalable customer experience system. That's why we are outlining this as a key focus of our 2022 plan. Customers love our model, and we're working hard to deliver a fast, streamlined process. We've already kickstarted a number of strategies and tactics that target this vital part of our business. Starting with the consumer-facing sales experience, we undergo continuous A/B testing to optimize our merchandising strategy. We also have new functionality plan to streamline the sales funnel, including new account features, enhance the e-signature capabilities and more. We're also investing in the back end by implementing automation for digital workflow solutions. Additionally, incorporating a fully captive digital lending solution will help simplify the sales and lending process for our customers and our staff. Let's recap the year on Slide 9. We delivered triple-digit unit growth. We fulfilled record-breaking level of transactions with a step-up each quarter. We expanded gross profit per unit. We exceeded our operational targets. We also moved forward with 2 strategic acquisitions, completing the acquisition of CarStory, and most recently, closed on UACC. We are building a strong, sustainable platform in 2022. We are going to focus on improving transaction speed and efficiency to improve the customer experience and drive enhanced profitability. We will test small and scale big as new initiatives take hold. We will expand capacity across logistics and reconditioning. This will include ongoing investment in supply chain enhancements, a faster and more streamlined user experience, and with UACC in our portfolio, we will begin a captive financing program to drive conversion and unit economic improvement. With that, I'll turn over the call to Bob to review our financial performance and our guidance. Bob?